SPENCER, E. W. (1983). Physical geology. Addison-Wesley.
芝加哥风格引文SPENCER, Edgar W. Physical Geology. Reading: Addison-Wesley, 1983.
MLA引文SPENCER, Edgar W. Physical Geology. Addison-Wesley, 1983.
警告：这些引文格式不一定是100％准确.
APA引文
SPENCER, E. W. (1983). Physical geology. Addison-Wesley.
芝加哥风格引文SPENCER, Edgar W. Physical Geology. Reading: Addison-Wesley, 1983.
MLA引文SPENCER, Edgar W. Physical Geology. Addison-Wesley, 1983.