APA

Janzen D. H., .Insect diversity of a Costa Rican dry forest: why keep it, and how?. : .

Chicago

Janzen Daniel H, .Insect diversity of a Costa Rican dry forest: why keep it, and how?. : .

Harvard

Janzen D. H., .Insect diversity of a Costa Rican dry forest: why keep it, and how?. : .

MLA

Janzen Daniel H, .: . .