Gaya APA
Bechtel, Robert B.. (1987).
Methods In Environmental And Behavioral Research .
New York:
VNR.
Gaya Chicago
Bechtel, Robert B..
Methods In Environmental And Behavioral Research.
New York:
VNR,
1987.
.
Gaya MLA
Bechtel, Robert B..
Methods In Environmental And Behavioral Research.
New York:
VNR,
1987.
.
Gaya Turabian
Bechtel, Robert B..
Methods In Environmental And Behavioral Research.
New York:
VNR,
1987.
.