APA

donovan j. k., . (1994). the self help directory ; a sourcebook for self - help. new york: facts on file books.

Chicago

donovan joseph k, . 1994. the self help directory ; a sourcebook for self - help. new york: facts on file books.

Harvard

donovan j. k., . (1994). the self help directory ; a sourcebook for self - help. new york: facts on file books.

MLA

donovan joseph k, . the self help directory ; a sourcebook for self - help. new york: facts on file books. 1994.