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Incoming Resources
- Mr. Popper's penguins, by Richard and Florence Atwater ; an unabridged performance by Paul Hecht
- Mr. Popper's penguins, by Richard and Florence Atwater ; illustrated by Robert Lawson
- Mr Popper's Penguins
- Mr. Popper's penguins, by Richard and Florence Atwater
- Mr. Popper's penguins, by Richard and Florence Atwater
- Mr. Popper's penguins, by Richard and Florence Atwater
- Mr. Popper's penguins, by Richard and Florence Atwater ; illustrated by Robert Lawson
- Mr. Popper's penguins, by Richard and Florence Atwater ; illustrated by Robert Lawson
- Mr. Popper's penguins, a pop-up book, by Richard and Florence Atwater ; [illustrated by Karin Williams]
- Mr. Popper's penguins, by Richard and Florence Atwater
- Mr. Popper's penguins, by Richard and Florence Atwater ; illustrated by Robert Lawson