Gaya APA
Alternative energy sources : strategy planning guide. (1981).
London:
An Aspen Publication.
Gaya Chicago
Alternative energy sources : strategy planning guide.
.
London:
An Aspen Publication,
1981.
Text.
Gaya MLA
Alternative energy sources : strategy planning guide.
.
London:
An Aspen Publication,
1981.
Text.
Gaya Turabian
Alternative energy sources : strategy planning guide.
London:
An Aspen Publication,
1981.
Print.