APA (7th ed.) Zitazioa

Vriesenga, D. Trees and plants: Grades 1-2. Instructional fair.

Chicago Style (17th ed.) Zitazioa

Vriesenga, Daryl. Trees and Plants: Grades 1-2. Michigan: Instructional fair.

MLA (9th ed.) Zitazioa

Vriesenga, Daryl. Trees and Plants: Grades 1-2. Instructional fair.