Cita APA (7th ed.)
Healey, A. (1975). Language learners field guide. Summer Institute of Linguistics.
Cita Chicago (17th ed.)
Healey, Alan. Language Learners Field Guide. Ukarumpa, Papua New Guinea: Summer Institute of Linguistics, 1975.
Cita MLA (9th ed.)
Healey, Alan. Language Learners Field Guide. Summer Institute of Linguistics, 1975.
Atenció: Aquestes cites poden no estar 100% correctes.