谢宇，李翠主编. 追寻先祖的足迹：发现人类祖先. 河北少年儿童出版社.
Chicago Style (17th ed.) Citation谢宇，李翠主编. 追寻先祖的足迹：发现人类祖先. 河北少年儿童出版社.
MLA (8th ed.) Citation谢宇，李翠主编. 追寻先祖的足迹：发现人类祖先. 河北少年儿童出版社.
Warning: These citations may not always be 100% accurate.
APA (7th ed.) Citation