Παραπομπή σε μορφή APA (7η εκδ.)

Howatt, A. P. R. (1969). Programmed learning and the language teacher: Some implications and suggestions for the use of programmes in the teaching of a foreign language. Longmans.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Howatt, Anthony P. R. Programmed Learning and the Language Teacher: Some Implications and Suggestions for the Use of Programmes in the Teaching of a Foreign Language. Harlow: Longmans, 1969.

Παραπομπή σε μορφή MLA (8th εκδ.)

Howatt, Anthony P. R. Programmed Learning and the Language Teacher: Some Implications and Suggestions for the Use of Programmes in the Teaching of a Foreign Language. Longmans, 1969.