Old, R. W. (1987). Principles of gene manipulation: An introduction to genetic engineering. London: Blackwell Scientific Publications.
استشهاد بنمط شيكاغوOld, R. W. Principles of Gene Manipulation: An Introduction to Genetic Engineering. London: Blackwell Scientific Publications, 1987.
MLA استشهادOld, R. W. Principles of Gene Manipulation: An Introduction to Genetic Engineering. London: Blackwell Scientific Publications, 1987.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.