APA (7th ed.) Citation

Pennell, F. W. (1943). Scrophulariaceae of the Western Himalayas. Wickersham Printing.

Chicago Style (17th ed.) Citation

Pennell, Francis W. Scrophulariaceae of the Western Himalayas. Philadelphia: Wickersham Printing, 1943.

MLA (9th ed.) Citation

Pennell, Francis W. Scrophulariaceae of the Western Himalayas. Wickersham Printing, 1943.

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