Pennell, F. W. (1943). Scrophulariaceae of the Western Himalayas. Wickersham Printing.
Chicago Style (17th ed.) CitationPennell, Francis W. Scrophulariaceae of the Western Himalayas. Philadelphia: Wickersham Printing, 1943.
MLA (9th ed.) CitationPennell, Francis W. Scrophulariaceae of the Western Himalayas. Wickersham Printing, 1943.
Warning: These citations may not always be 100% accurate.