Gaya APA
Ghaleb, E. (1986).
Encyclopedie Des Sciences De La Nature - Encyclopedia of Natural Sciences, jilid IV .
Beirut:
Dar El-Machreq Sarl.
Gaya MLA
Ghaleb, Edouard.
"Encyclopedie Des Sciences De La Nature - Encyclopedia of Natural Sciences, jilid IV".
Beirut:
Dar El-Machreq Sarl,
1986.
Text.