Prescott-Allen, R., & Prescott-Allen, C. (1990). How many plants feed the world?
Chicago Style (17th ed.) CitationPrescott-Allen, Robert, and Christine Prescott-Allen. How Many Plants Feed the World? 1990.
MLA (9th ed.) CitationPrescott-Allen, Robert, and Christine Prescott-Allen. How Many Plants Feed the World? 1990.
Warning: These citations may not always be 100% accurate.