APA (7th ed.) Citation

Blacklock, D. B., Southwell, T., & Davey, T. H. (1958). A guide to human parasitology for medical practitioners (6th ed.). Williams & Wilkins.

Chicago Style (17th ed.) Citation

Blacklock, D. B., T. Southwell, and T. H. Davey. A Guide to Human Parasitology for Medical Practitioners. 6th ed. Baltimore: Williams & Wilkins, 1958.

MLA (9th ed.) Citation

Blacklock, D. B., et al. A Guide to Human Parasitology for Medical Practitioners. 6th ed. Williams & Wilkins, 1958.