Gaya APA
Cunningham, William P., Cunningham, Mary Ann. (2013).
Principles of Environmental Science: inquiry & applications seventh edition (seventh edition).
New York:
McGraw-Hill Irwin.
Gaya Chicago
Cunningham, William P., Cunningham, Mary Ann.
Principles of Environmental Science: inquiry & applications seventh edition.
seventh edition
New York:
McGraw-Hill Irwin,
2013.
ML.
Gaya MLA
Cunningham, William P., Cunningham, Mary Ann.
Principles of Environmental Science: inquiry & applications seventh edition.
seventh edition
New York:
McGraw-Hill Irwin,
2013.
ML.
Gaya Turabian
Cunningham, William P., Cunningham, Mary Ann.
Principles of Environmental Science: inquiry & applications seventh edition.
seventh edition
New York:
McGraw-Hill Irwin,
2013.
ML.