Não informado. (2001). Snellius-expedition in the Eastern part of the Netherlands-East-Indies, 1929-1930. Keminken Zoon.
Chicago-Zitierstil (17. Ausg.)Não informado. Snellius-expedition in the Eastern Part of the Netherlands-East-Indies, 1929-1930. Utrecht, Holanda: Keminken Zoon, 2001.
MLA-Zitierstil (8. Ausg.)Não informado. Snellius-expedition in the Eastern Part of the Netherlands-East-Indies, 1929-1930. Keminken Zoon, 2001.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.