Bicycle mystery /

While on a bicycle trip to their aunt's farm, the four Aldens help solve a mystery.

Bibliographic Details

Main Author:	Warner, Gertrude Chandler, 1890-1979
Other Authors:	Cunningham, David, 1938- (Illustrator)
Format:	Book
Language:	English
Published:	Chicago : A. Whitman, [1970]
Series:	Albert Whitman pilot books Alden family mysteries
Subjects:	Mystery and detective stories.