Cita APA

Smalley, R. L., & Ruetten, M. K. (2012). Refining composition skills: Academic writing and grammar. Boston: National Geographic Learning; Heinle Cenage Learning.

Chicago Style Citation

Smalley, Regina L., i Mary K. Ruetten. Refining Composition Skills: Academic Writing and Grammar. Boston: National Geographic Learning; Heinle Cenage Learning, 2012.

Cita MLA

Smalley, Regina L., i Mary K. Ruetten. Refining Composition Skills: Academic Writing and Grammar. Boston: National Geographic Learning; Heinle Cenage Learning, 2012.