Gaya APA
Management in extension. (1988).
Alabama:
Auburn University.
Gaya Chicago
Management in extension.
.
Alabama:
Auburn University,
1988.
Buku.
Gaya MLA
Management in extension.
.
Alabama:
Auburn University,
1988.
Buku.
Gaya Turabian
Management in extension.
Alabama:
Auburn University,
1988.
Buku.