Foster, S. M., & Smout, T. C. (1994). The history of soils and field systems. Aberdeen: Scottish Cultural Press.
استشهاد بنمط شيكاغوFoster, Sally M,, و T. C. Smout. The History of Soils and Field Systems. Aberdeen: Scottish Cultural Press, 1994.
MLA استشهادFoster, Sally M,, و T. C. Smout. The History of Soils and Field Systems. Aberdeen: Scottish Cultural Press, 1994.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.