APA (7th ed.) Citation

Gilmour, J., & Turner, W. J. (1944). British botanists. William Collins.

Chicago Style (17th ed.) Citation

Gilmour, James, and Walter James Turner. British Botanists. London: William Collins, 1944.

MLA (9th ed.) Citation

Gilmour, James, and Walter James Turner. British Botanists. William Collins, 1944.

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