Cita APA

Dobson, J. M. (1992). Effective techniques for english conservation groups. Washington, D.C.: English language programs division.

Citación estilo Chicago

Dobson, Julia M. Effective Techniques for English Conservation Groups. Washington, D.C.: English language programs division, 1992.

Cita MLA

Dobson, Julia M. Effective Techniques for English Conservation Groups. Washington, D.C.: English language programs division, 1992.