Cita APA (7th ed.)

Legge, D. (1970). Skills: Selected readings. Penguin Books.

Cita Chicago (17th ed.)

Legge, David. Skills: Selected Readings. Harmondsworth: Penguin Books, 1970.

Cita MLA (8th ed.)

Legge, David. Skills: Selected Readings. Penguin Books, 1970.