APA (7th ed.) Citation

Whitehead, G. (1969). Commerce made simple. W. H. Allen.

Chicago Style (17th ed.) Citation

Whitehead, Geoffrey. Commerce Made Simple. London: W. H. Allen, 1969.

MLA (8th ed.) Citation

Whitehead, Geoffrey. Commerce Made Simple. W. H. Allen, 1969.

Warning: These citations may not always be 100% accurate.