Gaya APA
Khanna, D. R.. (2012).
Waste Products and Pollution (-).
:
Discovery Publishing House.
Gaya Chicago
Khanna, D. R..
Waste Products and Pollution.
-
:
Discovery Publishing House,
2012.
Text.
Gaya MLA
Khanna, D. R..
Waste Products and Pollution.
-
:
Discovery Publishing House,
2012.
Text.
Gaya Turabian
Khanna, D. R..
Waste Products and Pollution.
-
:
Discovery Publishing House,
2012.
Print.