Gaya APA

Lundell, M., Trivas, I. (1995). A girl named Helen Keller : Hello Reader! level 3 - Grade 1 & 2 . New York: Cartwheel Books.

Gaya MLA

Lundell, Margo., Trivas, Irene. "A girl named Helen Keller : Hello Reader! level 3 - Grade 1 & 2". New York: Cartwheel Books, 1995. Text.