Gaya APA
Turk, Johathan, Turk, Amos. (1984).
Environmental science (3e).
Philadelphia, New Jersey:
Saunders.
Gaya Chicago
Turk, Johathan, Turk, Amos.
Environmental science.
3e
Philadelphia, New Jersey:
Saunders,
1984.
Buku.
Gaya MLA
Turk, Johathan, Turk, Amos.
Environmental science.
3e
Philadelphia, New Jersey:
Saunders,
1984.
Buku.
Gaya Turabian
Turk, Johathan, Turk, Amos.
Environmental science.
3e
Philadelphia, New Jersey:
Saunders,
1984.
Buku.