Gaya APA
Widyastuti, S. et al
(2005).
Patologi hutan
.
Yogyakarta:
Gadjah Mada University Press.
Gaya MLA
Widyastuti, S.M.. et al.
"Patologi hutan".
Yogyakarta:
Gadjah Mada University Press,
2005.
Text.