Gaya APA
Marketing scientific and technical information. (1979).
Colorado:
Westview Press.
Gaya Chicago
Marketing scientific and technical information.
text.
Colorado:
Westview Press,
1979.
Tesis.
Gaya MLA
Marketing scientific and technical information.
text.
Colorado:
Westview Press,
1979.
Tesis.
Gaya Turabian
Marketing scientific and technical information.
Colorado:
Westview Press,
1979.
Tesis.