APA Style
Research, Iea Coal. (1991).
1991 International Conference on Coal Science Proceedings (-).
Oxford:
Butterworth-Heinemann.
Chicago Style
Research, Iea Coal.
1991 International Conference on Coal Science Proceedings.
-
Oxford:
Butterworth-Heinemann,
1991.
Text.
MLA Style
Research, Iea Coal.
1991 International Conference on Coal Science Proceedings.
-
Oxford:
Butterworth-Heinemann,
1991.
Text.
Turabian Style
Research, Iea Coal.
1991 International Conference on Coal Science Proceedings.
-
Oxford:
Butterworth-Heinemann,
1991.
Print.