APA
Silsby J., . (1980). Inland birds of saudi Arabia. London: Immel publishing.
Chicago
Silsby Jill, . 1980. Inland birds of saudi Arabia. London: Immel publishing.
Harvard
Silsby J., . (1980). Inland birds of saudi Arabia. London: Immel publishing.
MLA
Silsby Jill, . Inland birds of saudi Arabia. London: Immel publishing. 1980.
