Cita APA (7th ed.)
Phillips, W. J. The Spring Grain-aphis or "green bug.".
Cita Chicago (17th ed.)
Phillips, William Jeter. The Spring Grain-aphis or "Green Bug.".
Cita MLA (9th ed.)
Phillips, William Jeter. The Spring Grain-aphis or "Green Bug.".
Atenció: Aquestes cites poden no estar 100% correctes.