Gaya APA
Bittel, Lester Robert. (1978).
Encyclopedia of professional management .
Danbury:
Grolier International.
Gaya Chicago
Bittel, Lester Robert.
Encyclopedia of professional management.
Danbury:
Grolier International,
1978.
Text.
Gaya MLA
Bittel, Lester Robert.
Encyclopedia of professional management.
Danbury:
Grolier International,
1978.
Text.
Gaya Turabian
Bittel, Lester Robert.
Encyclopedia of professional management.
Danbury:
Grolier International,
1978.
Print.