APA引文

Williams, C. N., Uzo, J. O., & Peregrine, W. T. H. (1991). Vegetable production in the tropics. Longman Scientific and Technical.

Chicago Style (17th ed.) Citation

Williams, C. N., J. O. Uzo, and W. T. H. Peregrine. Vegetable Production in the Tropics. Essex, England: Longman Scientific and Technical, 1991.

MLA引文

Williams, C. N., et al. Vegetable Production in the Tropics. Longman Scientific and Technical, 1991.