Gaya APA
Keller, R. (1996).
Identification Of Tropical Woody Plants In The Absence Of Flowers And Fruits .
Heiderrg Berlin:
Birk Hauser.
Gaya MLA
Keller, Roland.
"Identification Of Tropical Woody Plants In The Absence Of Flowers And Fruits".
Heiderrg Berlin:
Birk Hauser,
1996.
Text.