Cita APA (7th ed.)

(1960). Physical fitness: 5BX11-minute-a-day plan for men,XBX 12-minute-a day plan for women. Penguin Books.

Cita Chicago (17th ed.)

Physical Fitness: 5BX11-minute-a-day Plan for Men,XBX 12-minute-a Day Plan for Women. England: Penguin Books, 1960.

Cita MLA (9th ed.)

Physical Fitness: 5BX11-minute-a-day Plan for Men,XBX 12-minute-a Day Plan for Women. Penguin Books, 1960.