Harris, Thomas A. 1910-1995 OK words; : from I'm OK--you're OK. [electronic resource] / Selected by Dan Drake. Illustrated by John Overmyer.. — [Kansas City, Mo., : Hallmark Cards, inc.,, 1971]. — [46] p. : col. illus. 16 cm. — (Hallmark editions). ISBN: 0875292267 9780875292267 LCCN: 76158148 Subjects--Topical Terms: Psychology. LC Class. No.: BF145 / .H346 Dewey Class. No.: 158/.1