1.
|
New York : Dell, 1990, c1964.
|
2.
|
New York : Dell, 1985, c1984.
|
3.
|
New York : Dell, 1973, c1967.
|
4.
|
New York : Young Readers Press, 1973, c1970.
|
5.
|
New York, Holt, Rinehart and Winston [c1966]
|
6.
|
New York, Holt, Rinehart and Winston [1963]
|
7.
|
New York : Dutton, c1981.
|
8.
|
New York : Dutton, c1978.
|
9.
|
New York : Dell Publishing Co., 1990.
|
10.
|
New York : Dell, 1974, c1965.
|