Cita APA

Ward, H., & Ward, H. (1927). Exploring the universe: The incredible discoveries of recent science. New York, New York: Grosset & Dunlap.

Citación estilo Chicago

Ward, Henshaw, y Henshaw Ward. Exploring the Universe: The Incredible Discoveries of Recent Science. New York, New York: Grosset & Dunlap, 1927.

Cita MLA

Ward, Henshaw, y Henshaw Ward. Exploring the Universe: The Incredible Discoveries of Recent Science. New York, New York: Grosset & Dunlap, 1927.