Cita APA (7th ed.)

O´Brien. (1967). O´Brien: From water boy to one million a year. The General Store Publishing House.

Cita Chicago (17th ed.)

O´Brien. O´Brien: From Water Boy to One Million a Year. Ontario, Canadá: The General Store Publishing House, 1967.

Cita MLA (9th ed.)

O´Brien. O´Brien: From Water Boy to One Million a Year. The General Store Publishing House, 1967.