APA Citation

Harshberger, J. W. 1. (2012). The botanists of Philadelphia and their work. [London]: Forgotten Books.

Chicago Style Citation

Harshberger, John W. 1869-1929. The Botanists of Philadelphia and Their Work. [London]: Forgotten Books, 2012.

MLA Citation

Harshberger, John W. 1869-1929. The Botanists of Philadelphia and Their Work. [London]: Forgotten Books, 2012.

Warning: These citations may not always be 100% accurate.