APA (7th ed.) Citation

(1973). System: An international journal of educational technology and applied linguistics. Elsevier Science.

Chicago Style (17th ed.) Citation

System: An International Journal of Educational Technology and Applied Linguistics. Amsterdam [u.a.]: Elsevier Science, 1973.

MLA (8th ed.) Citation

System: An International Journal of Educational Technology and Applied Linguistics. Elsevier Science, 1973.