APA Style
Nath, Bhaskar. (1991).
Proceedings of international conference on environmental pollution, Lisbon, April 1991 .
Switzerland:
Inderscience enterprises limited.
Chicago Style
Nath, Bhaskar.
Proceedings of international conference on environmental pollution, Lisbon, April 1991.
Switzerland:
Inderscience enterprises limited,
1991.
Book.
MLA Style
Nath, Bhaskar.
Proceedings of international conference on environmental pollution, Lisbon, April 1991.
Switzerland:
Inderscience enterprises limited,
1991.
Book.
Turabian Style
Nath, Bhaskar.
Proceedings of international conference on environmental pollution, Lisbon, April 1991.
Switzerland:
Inderscience enterprises limited,
1991.
Book.