APA استشهاد

Singh, R. (1968). Plant disease (2.). Oxford & IBH publishing company.

استشهاد بنمط شيكاغو

Singh, R.S. Plant Disease. 2. Calcutta: Oxford & IBH publishing company, 1968.

MLA استشهاد

Singh, R.S. Plant Disease. 2. Oxford & IBH publishing company, 1968.