APA (7th ed.) Citation

Crampton, W. G. (1989). The complete guide to flags. Kingfisher.

Chicago Style (17th ed.) Citation

Crampton, W. G. The Complete Guide to Flags. London: Kingfisher, 1989.

MLA (8th ed.) Citation

Crampton, W. G. The Complete Guide to Flags. Kingfisher, 1989.

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