Cita APA (7th ed.)

Yamada, Y., Gaza, T. A., & Gutierrez, L. M. (2011). Ap-names of grandparents in Itbayat the Philippines. [publisher not identified].

Cita Chicago (17th ed.)

Yamada, Yukihiro, Teofredo Asa Gaza, i Laura Mirabueno Gutierrez. Ap-names of Grandparents in Itbayat the Philippines. Himeji, Japan: [publisher not identified], 2011.

Cita MLA (9th ed.)

Yamada, Yukihiro, et al. Ap-names of Grandparents in Itbayat the Philippines. [publisher not identified], 2011.