Human, H., & Nicolson, S. W. Flower structure and nectar availability in Aloe Greatheadii var. Davyana: An evaluation of a winter nectar source for honeybees.
Trích dẫn kiểu ChicagoHuman, Hannelie., và Susan W. Nicolson. Flower Structure and Nectar Availability in Aloe Greatheadii Var. Davyana: An Evaluation of a Winter Nectar Source for Honeybees.
MLA引文Human, Hannelie., và Susan W. Nicolson. Flower Structure and Nectar Availability in Aloe Greatheadii Var. Davyana: An Evaluation of a Winter Nectar Source for Honeybees.
警告：這些引文格式不一定是100％准確.