Gaya APA
Osburn, Donald D.. (1978).
Modern agriculture management (text).
Virginia:
Reston.
Gaya Chicago
Osburn, Donald D..
Modern agriculture management.
text
Virginia:
Reston,
1978.
Tesis.
Gaya MLA
Osburn, Donald D..
Modern agriculture management.
text
Virginia:
Reston,
1978.
Tesis.
Gaya Turabian
Osburn, Donald D..
Modern agriculture management.
text
Virginia:
Reston,
1978.
Tesis.