Gaya APA
Gunningham, William P, Cunningham, Maryann. (2000).
Principles of Environmemtal Science (Ed.1).
America:
the Mc Grow-Hill.
Gaya Chicago
Gunningham, William P, Cunningham, Maryann.
Principles of Environmemtal Science.
Ed.1
America:
the Mc Grow-Hill,
2000.
Buku.
Gaya MLA
Gunningham, William P, Cunningham, Maryann.
Principles of Environmemtal Science.
Ed.1
America:
the Mc Grow-Hill,
2000.
Buku.
Gaya Turabian
Gunningham, William P, Cunningham, Maryann.
Principles of Environmemtal Science.
Ed.1
America:
the Mc Grow-Hill,
2000.
Buku.