APA (7th ed.) Citation

Samuel, P. S., Fasuyi, O. O., & Azuwuine Njoku, P. (1979). A new tropical health science for West Africa. Macmillan.

Chicago Style (17th ed.) Citation

Samuel, P. S., O O. Fasuyi, and P. Azuwuine Njoku. A New Tropical Health Science for West Africa. London: Macmillan, 1979.

MLA (9th ed.) Citation

Samuel, P. S., et al. A New Tropical Health Science for West Africa. Macmillan, 1979.