APA (7th ed.) Citation

Marais, B., Klopper, G., & John, J. Prostate cancer perspective: Africa versus the world. South African Medical Association.

Chicago Style (17th ed.) Citation

Marais, B., G. Klopper, and J. John. Prostate Cancer Perspective: Africa Versus the World. South African Medical Association.

MLA (9th ed.) Citation

Marais, B., et al. Prostate Cancer Perspective: Africa Versus the World. South African Medical Association.