APA (7th ed.) Citation

Mackinnon, C. (1972). The observer's book of heraldry. Warne.

Chicago Style (17th ed.) Citation

Mackinnon, Charles. The Observer's Book of Heraldry. London [etc.]: Warne, 1972.

MLA (9th ed.) Citation

Mackinnon, Charles. The Observer's Book of Heraldry. Warne, 1972.

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