APA
Gunther A., . (1964). Catalogue of the physostonic contain the families in the collection of the British Museum. Vol.7. London: Wheldon and Wesley Limited.
Chicago
Gunther Albert, . 1964. Catalogue of the physostonic contain the families in the collection of the British Museum. Vol.7. London: Wheldon and Wesley Limited.
Harvard
Gunther A., . (1964). Catalogue of the physostonic contain the families in the collection of the British Museum. Vol.7. London: Wheldon and Wesley Limited.
MLA
Gunther Albert, . Catalogue of the physostonic contain the families in the collection of the British Museum. Vol.7. London: Wheldon and Wesley Limited. 1964.