Gaya APA
Cunningham, William P., Cunningham, Mary Ann. (2015).
Environmental Science : A Global Concern (13th.ed).
New York:
Mc Graw Hill Education.
Gaya Chicago
Cunningham, William P., Cunningham, Mary Ann.
Environmental Science : A Global Concern.
13th.ed
New York:
Mc Graw Hill Education,
2015.
Teks.
Gaya MLA
Cunningham, William P., Cunningham, Mary Ann.
Environmental Science : A Global Concern.
13th.ed
New York:
Mc Graw Hill Education,
2015.
Teks.
Gaya Turabian
Cunningham, William P., Cunningham, Mary Ann.
Environmental Science : A Global Concern.
13th.ed
New York:
Mc Graw Hill Education,
2015.
Teks.