APA način citiranja

Human, H., & Nicolson, S. W. Flower structure and nectar availability in Aloe Greatheadii var. Davyana: An evaluation of a winter nectar source for honeybees.

Čikaški stil citiranja

Human, Hannelie., i Susan W. Nicolson. Flower Structure and Nectar Availability in Aloe Greatheadii Var. Davyana: An Evaluation of a Winter Nectar Source for Honeybees.

MLA način citiranja

Human, Hannelie., i Susan W. Nicolson. Flower Structure and Nectar Availability in Aloe Greatheadii Var. Davyana: An Evaluation of a Winter Nectar Source for Honeybees.