APA (7th ed.) Citation

Peterson, L. (1979). Comprehension Practice for Proficiency Other Worlds / Lennart Peterson. HEB.

Chicago Style (17th ed.) Citation

Peterson, Lennarts. Comprehension Practice for Proficiency Other Worlds / Lennart Peterson. HEB, 1979.

MLA (8th ed.) Citation

Peterson, Lennarts. Comprehension Practice for Proficiency Other Worlds / Lennart Peterson. HEB, 1979.

Warning: These citations may not always be 100% accurate.