Chastain, K. (1976). Developing second language skill: Theory to practice. Houghton Mifflin.
Citazione stile Chigago Style (17a edizione)Chastain, Kenneth. Developing Second Language Skill: Theory to Practice. Dallas: Houghton Mifflin, 1976.
Citatione MLA (9a ed.)Chastain, Kenneth. Developing Second Language Skill: Theory to Practice. Houghton Mifflin, 1976.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.