APA (7th ed.) Citation

Barton, L. V., & Crocker, W. Twenty years of seed research. Faber and Faber.

Chicago Style (17th ed.) Citation

Barton, Lela V., and William Crocker. Twenty Years of Seed Research. London: Faber and Faber.

MLA (9th ed.) Citation

Barton, Lela V., and William Crocker. Twenty Years of Seed Research. Faber and Faber.