Penggayaan APA
VERHAGEN, Koenraad. (1987).
Self-help promotion : .
The Netherlands:
Royal tropical institute.
Chicago Style
VERHAGEN, Koenraad.
Self-help promotion :.
The Netherlands:
Royal tropical institute,
1987.
Buku.
MLA Style
VERHAGEN, Koenraad.
Self-help promotion :.
The Netherlands:
Royal tropical institute,
1987.
Buku.
Turabian Style
VERHAGEN, Koenraad.
Self-help promotion :.
The Netherlands:
Royal tropical institute,
1987.
Buku.