Gaya APA
Velle, Jach B. Re. (1980).
Safety training methods (text).
New York:
John Wiley & Sons.
Gaya Chicago
Velle, Jach B. Re.
Safety training methods.
text
New York:
John Wiley & Sons,
1980.
Tesis.
Gaya MLA
Velle, Jach B. Re.
Safety training methods.
text
New York:
John Wiley & Sons,
1980.
Tesis.
Gaya Turabian
Velle, Jach B. Re.
Safety training methods.
text
New York:
John Wiley & Sons,
1980.
Tesis.