Gaya APA
d'Ayala, P., Hein, P., Beller, William S.. (1990).
Sustainable Development and Environmental Management of Small Islands Volume 5 (Ed. 1, Cet. 1).
Paris:
Unesco.
Gaya Chicago
d'Ayala, P., Hein, P., Beller, William S..
Sustainable Development and Environmental Management of Small Islands Volume 5.
Ed. 1, Cet. 1
Paris:
Unesco,
1990.
Textbook.
Gaya MLA
d'Ayala, P., Hein, P., Beller, William S..
Sustainable Development and Environmental Management of Small Islands Volume 5.
Ed. 1, Cet. 1
Paris:
Unesco,
1990.
Textbook.
Gaya Turabian
d'Ayala, P., Hein, P., Beller, William S..
Sustainable Development and Environmental Management of Small Islands Volume 5.
Ed. 1, Cet. 1
Paris:
Unesco,
1990.
Textbook.