Trích dẫn APA

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.

Trích dẫn kiểu Chicago

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.

Trích dẫn MLA

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.

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