V. Johnson, D. (2014). Iraq as a Source of Date Varieties for the USA and the American Scientists Who Collected Them. Alustath, 13(1), 1-5.

Dennis V. Johnson. "Iraq as a Source of Date Varieties for the USA and the American Scientists Who Collected Them". Alustath, 13, 1, 2014, 1-5.

V. Johnson, D. (2014). 'Iraq as a Source of Date Varieties for the USA and the American Scientists Who Collected Them', Alustath, 13(1), pp. 1-5.

V. Johnson, D. Iraq as a Source of Date Varieties for the USA and the American Scientists Who Collected Them. Alustath, 2014; 13(1): 1-5.