APA-viite

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

Chicago-tyylinen lähdeviittaus

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

MLA-viite

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

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