Gill, K. (1993). Process and portfolios in writing instruction. National Council of Teachers of English.
Cita Chicago (17th ed.)Gill, Kent. Process and Portfolios in Writing Instruction. Urbana: National Council of Teachers of English, 1993.
Cita MLA (9th ed.)Gill, Kent. Process and Portfolios in Writing Instruction. National Council of Teachers of English, 1993.
Atenció: Aquestes cites poden no estar 100% correctes.