Cita APA

Croft, K., & Walker Brown, B. (1966). Science readings for students of english as a second language: With exercises for vocabulary development (1a. ed.). Colombia: McGraw-Hill Book Company.

Citación estilo Chicago

Croft, Kenneth, y Billye Walker Brown. Science Readings for Students of English As a Second Language: With Exercises for Vocabulary Development. 1a. ed. Colombia: McGraw-Hill Book Company, 1966.

Cita MLA

Croft, Kenneth, y Billye Walker Brown. Science Readings for Students of English As a Second Language: With Exercises for Vocabulary Development. 1a. ed. Colombia: McGraw-Hill Book Company, 1966.