APA Style

Guarino, Deborah, Kellogg, Steven. (1989). Is Your Mama a Llama? . USA: Scholastic INC.

Chicago Style

Guarino, Deborah, Kellogg, Steven. Is Your Mama a Llama?. USA: Scholastic INC, 1989. Text.

MLA Style

Guarino, Deborah, Kellogg, Steven. Is Your Mama a Llama?. USA: Scholastic INC, 1989. Text.

Turabian Style

Guarino, Deborah, Kellogg, Steven. Is Your Mama a Llama?. USA: Scholastic INC, 1989. Print.