APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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