APA citiranje

Faria Vieira, M., & John Shepherd, G. (2002). Removal and insertion of pollinia in flowers of Oxypetalum (Asclepiadaceae) in southeastern Brazil.

Citación estilo Chicago

Faria Vieira, Milene, y George John Shepherd. Removal and Insertion of Pollinia in Flowers of Oxypetalum (Asclepiadaceae) in Southeastern Brazil. 2002.

MLA citiranje

Faria Vieira, Milene, y George John Shepherd. Removal and Insertion of Pollinia in Flowers of Oxypetalum (Asclepiadaceae) in Southeastern Brazil. 2002.