APA (7th ed.) Citation
Hijmans, R., Huaccho, L., & Zhang, D. (1999). Global Distribution of Sweetpotato.
Chicago Style (17th ed.) Citation
Hijmans, R.J, L. Huaccho, and D.P Zhang. Global Distribution of Sweetpotato. 1999.
MLA (9th ed.) Citation
Hijmans, R.J, et al. Global Distribution of Sweetpotato. 1999.
Warning: These citations may not always be 100% accurate.