Cita APA

Nelson, G. L. 1., & Winters, T. A. (1980). ESL operations: Techniques for learning while doing. Rowley, Mass.: Newbury.

Citación estilo Chicago

Nelson, Gayle L. 1947-, y Thomas A. Winters. ESL Operations: Techniques for Learning While Doing. Rowley, Mass.: Newbury, 1980.

Cita MLA

Nelson, Gayle L. 1947-, y Thomas A. Winters. ESL Operations: Techniques for Learning While Doing. Rowley, Mass.: Newbury, 1980.