Cita APA

Riegel, D. G., & Dowling, E. (2017). Tips of the tongue: The nonnative english speaker's guide to mastering public speaking. Oceanside, CA: Indie Books International.

Chicago Style Citation

Riegel, Deborah Grayson, i Ellen Dowling. Tips of the Tongue: The Nonnative English Speaker's Guide to Mastering Public Speaking. Oceanside, CA: Indie Books International, 2017.

Cita MLA

Riegel, Deborah Grayson, i Ellen Dowling. Tips of the Tongue: The Nonnative English Speaker's Guide to Mastering Public Speaking. Oceanside, CA: Indie Books International, 2017.