Cita APA (7a ed.)

Rand, A., & Birnbaum, A. (1966). Did a bear just walk there! Harcourt, Brace & World.

Cita Chicago Style (17a ed.)

Rand, Ann, y Abe Birnbaum. Did a Bear Just Walk There! New York: Harcourt, Brace & World, 1966.

Cita MLA (9a ed.)

Rand, Ann, y Abe Birnbaum. Did a Bear Just Walk There! Harcourt, Brace & World, 1966.