La Gironiere, P. P. d. (1976). Twenty years in the Philippines [1819-1839] [microform]. Photoduplication Service, University of the Philippines Library.
Chicago-Zitierstil (17. Ausg.)La Gironiere, Paul Proust de. Twenty Years in the Philippines [1819-1839] [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1976.
MLA-Zitierstil (9. Ausg.)La Gironiere, Paul Proust de. Twenty Years in the Philippines [1819-1839] [microform]. Photoduplication Service, University of the Philippines Library, 1976.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.