APA
Chappell M. N., . (1949). How to control worry in the name of common sense. Permabooks, New York: .
Chicago
Chappell Mathew N, . 1949. How to control worry in the name of common sense. Permabooks, New York: .
Harvard
Chappell M. N., . (1949). How to control worry in the name of common sense. Permabooks, New York: .
MLA
Chappell Mathew N, . How to control worry in the name of common sense. Permabooks, New York: . 1949.