Gaya APA
Bittel, Lester Robert. (1978).
Encyclopedia of Professional Management 2 .
United states of america:
Grolier International, Inc..
Gaya Chicago
Bittel, Lester Robert.
Encyclopedia of Professional Management 2.
United states of america:
Grolier International, Inc.,
1978.
Referensi.
Gaya MLA
Bittel, Lester Robert.
Encyclopedia of Professional Management 2.
United states of america:
Grolier International, Inc.,
1978.
Referensi.
Gaya Turabian
Bittel, Lester Robert.
Encyclopedia of Professional Management 2.
United states of america:
Grolier International, Inc.,
1978.
Referensi.