Citazione Stile APA (7a Edizione)
Keuning, J., & Donkersloot-de Vrij, M. (1973). Willem Jansz. Blaeu: A biogr. and history of his work as a cartographer and publisher. Theatrum Orbis Terrarum.
Citazione stile Chigago Style (17a edizione)
Keuning, Johannes, e Marijke Donkersloot-de Vrij. Willem Jansz. Blaeu: A Biogr. and History of His Work as a Cartographer and Publisher. Amsterdam: Theatrum Orbis Terrarum, 1973.
Citatione MLA (9a ed.)
Keuning, Johannes, e Marijke Donkersloot-de Vrij. Willem Jansz. Blaeu: A Biogr. and History of His Work as a Cartographer and Publisher. Theatrum Orbis Terrarum, 1973.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.