APA (7th ed.) Citation

Key, M. M., & Butler, J. (1973). Health manpower in the 1970's. Asse Journal, 18, 31.

Chicago Style (17th ed.) Citation

Key, M. M., and J. Butler. "Health Manpower in the 1970's." Asse Journal 18 (1973): 31.

MLA (9th ed.) Citation

Key, M. M., and J. Butler. "Health Manpower in the 1970's." Asse Journal, vol. 18, 1973, p. 31.