APA (7th ed.) Citation

Rutgers, A., Leplae, E., & Tingey, P. (1922). Oil palm and their fruit. Griffith.

Chicago Style (17th ed.) Citation

Rutgers, A.A.L, Edmond Leplae, and Paul Tingey. Oil Palm and Their Fruit. London: Griffith, 1922.

MLA (9th ed.) Citation

Rutgers, A.A.L, et al. Oil Palm and Their Fruit. Griffith, 1922.