Dallas, D., & Iggulden, . M. (1990). Let's learn English. Longman.
Citación estilo ChicagoDallas, Donald, and Margaret Iggulden. Let's Learn English. Harlow: Longman, 1990.
Cita MLADallas, Donald, and Margaret Iggulden. Let's Learn English. Longman, 1990.
Warning: These citations may not always be 100% accurate.