Dr. Seuss. (1968). The Foot Book (The Bright and Early Books for Beginning Beginners) (Grolier Book Club Edition.). Random House.
Citazione stile Chigago Style (17a edizione)Dr. Seuss. The Foot Book (The Bright and Early Books for Beginning Beginners). Grolier Book Club Edition. Random House, 1968.
Citatione MLA (9a ed.)Dr. Seuss. The Foot Book (The Bright and Early Books for Beginning Beginners). Grolier Book Club Edition. Random House, 1968.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.