Mayer, M. (1969). Frog, where are you? Dial Books for Young Readers.
Chicago-viite (17. p.)Mayer, Mercer. Frog, Where Are You? New York: Dial Books for Young Readers, 1969.
MLA-viite (8. p.)Mayer, Mercer. Frog, Where Are You? Dial Books for Young Readers, 1969.
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