APA

Janzen D. H., .Jacquinia pungens, a heliophile from the understory of tropical deciduous forest. : .

Chicago

Janzen Daniel H, .Jacquinia pungens, a heliophile from the understory of tropical deciduous forest. : .

Harvard

Janzen D. H., .Jacquinia pungens, a heliophile from the understory of tropical deciduous forest. : .

MLA

Janzen Daniel H, .: . .