Gaya APA
Widyastuti,SM, . et al
(2005).
Patologi Hutan
(
Cet-1)
.
Yogyakarta ; Indonesia:
Gadjah Mada University Press.
Gaya MLA
Widyastuti,SM, . et al.
"Patologi Hutan".
Cet-1
Yogyakarta ; Indonesia:
Gadjah Mada University Press,
2005.
Textbook.