Cita APA (7a ed.)

Wellman, G. (1992). The Heinemann english wordbuilder. Heinemann.

Cita Chicago Style (17a ed.)

Wellman, Guy. The Heinemann English Wordbuilder. Oxford: Heinemann, 1992.

Cita MLA (8a ed.)

Wellman, Guy. The Heinemann English Wordbuilder. Heinemann, 1992.