Library of Congress
Authorities & Vocabularies
found: Ahlberg, J. The old joke book, 1977, c1976.
found: Monkey do! 1998: CIP t.p. (Allan Ahlberg) data sheet (b. in 1938)
found: Authors' Licensing and Collectors Soc. database, 28 Feb. 2005 (Allan Ahlberg, born 5 June 1938)
found: Everybody was a baby once, and other poems, 2010: ECIP t.p. (Allan Ahlberg) data view (b. in Croydon; lives in Bath, England)