现在，我的代码如下所示：
\begin{thebibliography}{99}
\label{AJ91}
\bibitem{AJ91}Angrist, J. and Krueger, A. (1991). \textit{Does compulsory school attendance affect schooling and earnings?} Quarterly Journal of Economics, \textbf{106}(4), 979--1014.
\label{BP88}
\bibitem{BP88}Bairoch, P. (1988). \textit{Cities and Economic Development: From the Dawn of History to the Present}. Chicago: University of Chicago Press.
\label{BC07}
\bibitem{BC07}Brokaw, C. (2007). \textit{Commerce in Culture: The Sibao Book Trade in the Qing and Republican Periods}. Cambridge, MA: Harvard University Asia Center.
\label{CC55}
\bibitem{CC55}Chang, C. (1955). \textit{The Chinese Gentry: Studies on Their Role in Nineteenth-Century Chinese Society}. Seattle: University of Washington Press.
\end{thebibliography}
输出如下：
但我希望它看起来像这样，所以没有数字，但有缩进：
答案1
原则上thebibliography只是一个花哨的enumerate环境，并且\bibitem/\cite类似于\label/，\ref带有一个覆盖标签输出的选项。（通常它们会产生编号的引用，但如果您使用可选参数\bibitem，即\bibitem[<label>]{<key>}条目将在文本中<key>被引用为“[ ]”。）<label>
生成的参考列表的列表格式（缩进、项间距离等）thebibliography主要由您的文档类控制。其他软件包natbib（无需 BibTeX 即可使用，但需有手册thebibliography）可能会接管并改变一切。
如果您想要在文本引用中使用作者年份，以及合适的作者年份参考书目（不带数字，但有缩进），您可以尝试加载该apalike包。它最初打算与 BibTeX 样式一起使用apalike，但也可以与手册一起使用thebibliography。
该包改变了参考书目列表环境thebibliography和的输出，\cite以便更好地适应作者年份引用。您只需要在可选参数中给出所需的引用输出\bibitem（并摆弄以\@cite删除一些括号）。
\documentclass[british]{article}
\usepackage[T1]{fontenc}
\usepackage{apalike}
\makeatletter
\def\@cite#1#2{#1\if@tempswa , #2\fi}
\makeatother
\begin{document}
Lorem \cite{AJ91}
\begin{thebibliography}{9}
\bibitem[Angrist and Krueger (1991)]{AJ91}Angrist, J. and Krueger, A. (1991). \textit{Does compulsory school attendance affect schooling and earnings?} Quarterly Journal of Economics, \textbf{106}(4), 979--1014.
\bibitem[Bairoch (1988)]{BP88}Bairoch, P. (1988). \textit{Cities and Economic Development: From the Dawn of History to the Present}. Chicago: University of Chicago Press.
\bibitem[Brokaw (2007)]{BC07}Brokaw, C. (2007). \textit{Commerce in Culture: The Sibao Book Trade in the Qing and Republican Periods}. Cambridge, MA: Harvard University Asia Center.
\bibitem[Chang (1955)]{CC55}Chang, C. (1955). \textit{The Chinese Gentry: Studies on Their Role in Nineteenth-Century Chinese Society}. Seattle: University of Washington Press.
\end{thebibliography}
\end{document}
如果你想要更好地控制引用，并选择同时引用“（<author>，<year>）”和“ <author>（<year>）”，你可以按照以下说明进行thebibliography兼容natbib我的答案到书目环境可以提供 APA 样式吗？。