Cita APA (7th ed.)

Charley, L., & O'Rourke, L. (1916). Opportunities: How to make the most of them (Authorized ed.). Funk & Wagnalls Co.

Cita Chicago (17th ed.)

Charley, L., i Lorenzo O'Rourke. Opportunities: How to Make the Most of Them. Authorized ed. New York: Funk & Wagnalls Co, 1916.

Cita MLA (9th ed.)

Charley, L., i Lorenzo O'Rourke. Opportunities: How to Make the Most of Them. Authorized ed. Funk & Wagnalls Co, 1916.