APA (7th ed.) Zitazioa

Gill, K. (1993). Process and portfolios in writing instruction. National Council of Teachers of English.

Chicago Style (17th ed.) Zitazioa

Gill, Kent. Process and Portfolios in Writing Instruction. Urbana: National Council of Teachers of English, 1993.

MLA (9th ed.) Zitazioa

Gill, Kent. Process and Portfolios in Writing Instruction. National Council of Teachers of English, 1993.