Grobler, Piet 1959- (Nombre personal)

Grandma Duckitt and the Zeppelin, c1996: title page (Piet Grobler; ill.)

De Vos, P. Carnival of the animals, 2000: CIP title page (Piet Grobler; illustrator) data sheet (born September 26, 1959)

SANB correspondence with author, September 14, 1989 (full name: Grobler, Petrus; date of birth: September 26, 1959)

LAC internal file, March 1, 2019 (heading: Grobler, Piet; South African)