Cita APA (7a ed.)

Pierce, J. E., & Hanna, I. V. (1978). The development of a linguistic system in English speaking American children. Hapi Press.

Cita Chicago Style (17a ed.)

Pierce, Joe E., y Ingrid Vanwaardenburg Hanna. The Development of a Linguistic System in English Speaking American Children. Portland, Oregon: Hapi Press, 1978.

Cita MLA (9a ed.)

Pierce, Joe E., y Ingrid Vanwaardenburg Hanna. The Development of a Linguistic System in English Speaking American Children. Hapi Press, 1978.