APA (7th ed.) Citation

Hewer, H. R. (1974). British seals: With 59 photogr. in black and white and 52 text fig. Collins.

Chicago Style (17th ed.) Citation

Hewer, Humphrey R. British Seals: With 59 Photogr. in Black and White and 52 Text Fig. London: Collins, 1974.

MLA (9th ed.) Citation

Hewer, Humphrey R. British Seals: With 59 Photogr. in Black and White and 52 Text Fig. Collins, 1974.