APA Style
Suseno, O, H. (1988).
Genetic variation and improvement of pinus merkusii jungh et de vriese .
Yogyakarta:
UGM.
MLA Style
Suseno, Oemi, Hanin.
"Genetic variation and improvement of pinus merkusii jungh et de vriese".
Yogyakarta:
UGM,
1988.
Text.