Pieters (1990): Notes on a drawing of Indian elephants in red crayon by PetrusCamper (1786) in the archives of the Rijksmuseum van Natuurlijke Historie In:
Campd. - Francisco Campderá (also François Campderá) (1793–1862) Camper - PetrusCamper (1722–1789) Campb.-Young - Gael Jean Campbell-Young (1973出生) Camus