APA (7th ed.) Citation

(1997). Calligraphy: The diagram group. Brockhampton Press Ltd.

Chicago Style (17th ed.) Citation

Calligraphy: The Diagram Group. London: Brockhampton Press Ltd, 1997.

MLA (9th ed.) Citation

Calligraphy: The Diagram Group. Brockhampton Press Ltd, 1997.

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