APA Style

Abdolla, S, M. (2010). Response of four varieties of sunflower (Helianthus annuus L.)for Tow Nitrogen Fertilizer Leveis : High Diploma . Erbil: salahaddin univrsity.

MLA Style

Abdolla, Shorish, Mostafa. "Response of four varieties of sunflower (Helianthus annuus L.)for Tow Nitrogen Fertilizer Leveis : High Diploma". Erbil: salahaddin univrsity, 2010. Text.