Smalley, R. L., & Ruetten, M. K. (2012). Refining composition skills: Academic writing and grammar. Boston: National Geographic Learning; Heinle Cenage Learning.
استشهاد بنمط شيكاغوSmalley, Regina L., و Mary K. Ruetten. Refining Composition Skills: Academic Writing and Grammar. Boston: National Geographic Learning; Heinle Cenage Learning, 2012.
MLA استشهادSmalley, Regina L., و Mary K. Ruetten. Refining Composition Skills: Academic Writing and Grammar. Boston: National Geographic Learning; Heinle Cenage Learning, 2012.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.