Weigel, Van B., 1954- A unified theory of global development / Van B. Weigel. - New York : Praeger, 1989. - xix, 263 p. : ill. ; 25 cm. Includes index. ISBN: 027593134X (alk. paper) LCCN: 88025211 LC Class. No.: HC79.B38 W45 1989 / W45 1989 Dewey Class. No.: 338.9