APA (7th ed.) Citation

Oppenheim, E. P., & Pegram, F. (2005). A Lost Leader. Project Gutenberg.

Chicago Style (17th ed.) Citation

Oppenheim, E. Phillips, and Fred Pegram. A Lost Leader. Project Gutenberg, 2005.

MLA (9th ed.) Citation

Oppenheim, E. Phillips, and Fred Pegram. A Lost Leader. Project Gutenberg, 2005.

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