APA (7th ed.) Citation

Maginnis, C. D. Pen Drawing: An Illustrated Treatise.

Chicago Style (17th ed.) Citation

Maginnis, Charles Donagh. Pen Drawing: An Illustrated Treatise.

MLA (9th ed.) Citation

Maginnis, Charles Donagh. Pen Drawing: An Illustrated Treatise.

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