Cita APA (7th ed.)

Baxter, E. L., Flender, M., & Landes, S. (1989). A literature guide to Sylvester and the magic pebble and Amos and Boris by William Steig. Book Wise.

Cita Chicago (17th ed.)

Baxter, Edith Lorraine, Molly Flender, i Sonia Landes. A Literature Guide to Sylvester and the Magic Pebble and Amos and Boris by William Steig. Cambridge: Book Wise, 1989.

Cita MLA (9th ed.)

Baxter, Edith Lorraine, et al. A Literature Guide to Sylvester and the Magic Pebble and Amos and Boris by William Steig. Book Wise, 1989.