APA (7th ed.) Citation

Emery, F. (1969). Systems thinking: Selected readings. Penguin Books Ltd.

Chicago Style (17th ed.) Citation

Emery, F.E. Systems Thinking: Selected Readings. Harmondsworth, Middlesex, England: Penguin Books Ltd, 1969.

MLA (9th ed.) Citation

Emery, F.E. Systems Thinking: Selected Readings. Penguin Books Ltd, 1969.