Lua APA (7ú heag.)

Bevans, K. B., Hallock, T. M., Piller, A., & Pfeiffer, B. (2022). Psychometric Evaluation of the Parent Effort Scale. Frontiers Media S.A.

Lua i Stíl Chicago (17ú heag.)

Bevans, Katherine B., Taye M. Hallock, Aimee Piller, agus Beth Pfeiffer. Psychometric Evaluation of the Parent Effort Scale. Frontiers Media S.A, 2022.

Lua MLA (9ú heag.)

Bevans, Katherine B., et al. Psychometric Evaluation of the Parent Effort Scale. Frontiers Media S.A, 2022.

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