Gaya APA
Ahmad, Yusuf J., Kassas, Mohamed. (1987).
Desertification : financial support for the biosphere .
Great Britain:
Kumarian Press.
Gaya Chicago
Ahmad, Yusuf J., Kassas, Mohamed.
Desertification : financial support for the biosphere.
Great Britain:
Kumarian Press,
1987.
Buku Non-ketenaganukliran.
Gaya MLA
Ahmad, Yusuf J., Kassas, Mohamed.
Desertification : financial support for the biosphere.
Great Britain:
Kumarian Press,
1987.
Buku Non-ketenaganukliran.
Gaya Turabian
Ahmad, Yusuf J., Kassas, Mohamed.
Desertification : financial support for the biosphere.
Great Britain:
Kumarian Press,
1987.
Buku Non-ketenaganukliran.