Klein, Allen (Nombre personal)

His Learning to laugh when you feel like crying, 1988: CIP t.p. (Allen Klein)

Gale Literature Resource Center, Jun. 23, 2009 (b. Apr. 26, 1938 in New York City)

Klein, Allen. The awe factor, 2020: title page (Allen Klein) about the author (Allen Klein ; professional keynote speaker and author ; Tedx presenter)