APA način citiranja

Hammel, B. (2015). Three new species of Marcgraviaceae from Costa Rica, with references to related species and notes on the generic placement of Schwartzia jimenezii.

Čikaški stil citiranja

Hammel, Barry. Three New Species of Marcgraviaceae From Costa Rica, With References to Related Species and Notes On the Generic Placement of Schwartzia Jimenezii. 2015.

MLA način citiranja

Hammel, Barry. Three New Species of Marcgraviaceae From Costa Rica, With References to Related Species and Notes On the Generic Placement of Schwartzia Jimenezii. 2015.