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Observations astronomiques et gravimétriques faites en l'île de Cayenne (Guyane française) par l'astronome français Jean Richer, d'après une gravure de Sébastien Leclerc.

Il s'agit d'une numérisation à faible résolution d'une gravure datant du XVIIe siècle. Vu son ancienneté, elle est libre de tout droit d'auteur et fait partie du domaine public. Carlo denis 12 juillet 2006 à 22:19 (CEST)

Image from page 34 of Voyage d'Uranibourg, ou observations astronomiques faites en Dannemarck (1680) - Picard, Jean, 1620-1682. Found at https://bvpb.mcu.es/es/consulta/registro.cmd?id=420341

Paris: Imprimerie Royale, 1680 92 p. ; fol. (37 cm)

digital. Madrid : Ministerio de Cultura. Subdirección General de Coordinación Bibliotecaria, 2010

Richer by Sébastien Leclerc, astronomical and gravimetrical observation in french Guyana. Author Carlo denis Phe 01:15, 14 February 2007 (UTC)