Gaya APA
Energy : resource, slave, pollutant. (1975).
Canada:
Macmillan Publishing.
Gaya Chicago
Energy : resource, slave, pollutant.
.
Canada:
Macmillan Publishing,
1975.
.
Gaya MLA
Energy : resource, slave, pollutant.
.
Canada:
Macmillan Publishing,
1975.
.
Gaya Turabian
Energy : resource, slave, pollutant.
Canada:
Macmillan Publishing,
1975.
.