APA (7th ed.) Citation

Petrak, F. (1969). Index of fungi: A supplement to Petrak's list. Commonwealth Mycological Institute.

Chicago Style (17th ed.) Citation

Petrak, Franz. Index of Fungi: A Supplement to Petrak's List. Kew: Commonwealth Mycological Institute, 1969.

MLA (9th ed.) Citation

Petrak, Franz. Index of Fungi: A Supplement to Petrak's List. Commonwealth Mycological Institute, 1969.

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