Citazione Stile APA (7a Edizione)

Hulley, J. (1991). Self-access spelling: An approach to structured spelling. National Extension College.

Citazione stile Chigago Style (17a edizione)

Hulley, Jan. Self-access Spelling: An Approach to Structured Spelling. Cambridge, [Eng.]: National Extension College, 1991.

Citatione MLA (9a ed.)

Hulley, Jan. Self-access Spelling: An Approach to Structured Spelling. National Extension College, 1991.