APA (7th ed.) Citation

Mackenzie, D. (1973). Postcript to a dead letter. Macmillan.

Chicago Style (17th ed.) Citation

Mackenzie, Donald. Postcript to a Dead Letter. London: Macmillan, 1973.

MLA (9th ed.) Citation

Mackenzie, Donald. Postcript to a Dead Letter. Macmillan, 1973.

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