Seuss, Dr. And to think that I saw it on Mulberry Street / by Dr. Seuss. - London : Collins, 2003, c1937. - [32] p. : chiefly col. ill. ; 23 cm. - Green back books . - Green back books . Originally published: New York, N.Y.: Vanguard Press, 1937. ISBN: 978-0394844947 Nat. Bib. No.: GBA3X1255 bnb Subjects--Topical Terms: Imagination--Juvenile poetry.Imagination--Pictorial works--Juvenile poetry.Children's poetry, American. Dewey Class. No.: 811.52