Cita APA (7th ed.)

Welsh, F. M., & Gordon, F. L. (1938). Thinking success into business. Weldon press.

Cita Chicago (17th ed.)

Welsh, Frank Manington, i Frances Lilian Gordon. Thinking Success into Business. Chicago, Ill: Weldon press, 1938.

Cita MLA (9th ed.)

Welsh, Frank Manington, i Frances Lilian Gordon. Thinking Success into Business. Weldon press, 1938.