APA

Zahlan A., . (1984). Agricultural bibliogarphy of syria to 1983. London: Ithaca Press.

Chicago

Zahlan A.B, . 1984. Agricultural bibliogarphy of syria to 1983. London: Ithaca Press.

Harvard

Zahlan A., . (1984). Agricultural bibliogarphy of syria to 1983. London: Ithaca Press.

MLA

Zahlan A.B, . Agricultural bibliogarphy of syria to 1983. London: Ithaca Press. 1984.