APA (7th ed.) Citation

Emery, F. E. . . . . . . . . . . . . . . e. (1969). Systems thinking: Selected readings (2d ed.). Penguin Books.

Chicago Style (17th ed.) Citation

Emery, Frederik Edmund ed. Systems Thinking: Selected Readings. 2d ed. Harmondsworth, Middlesex: Penguin Books, 1969.

MLA (9th ed.) Citation

Emery, Frederik Edmund ed. Systems Thinking: Selected Readings. 2d ed. Penguin Books, 1969.