Gaya APA
Silvern, Leonard C.. (1972).
Systems engineering applied to training .
:
Gulf Publishing Company.
Gaya Chicago
Silvern, Leonard C..
Systems engineering applied to training.
:
Gulf Publishing Company,
1972.
Text.
Gaya MLA
Silvern, Leonard C..
Systems engineering applied to training.
:
Gulf Publishing Company,
1972.
Text.
Gaya Turabian
Silvern, Leonard C..
Systems engineering applied to training.
:
Gulf Publishing Company,
1972.
Print.