Não informado. (2001). Snellius-expedition in the Eastern part of the Netherlands-East-Indies, 1929-1930. Keminken Zoon.
Citace podle Chicago (17th ed.)Não informado. Snellius-expedition in the Eastern Part of the Netherlands-East-Indies, 1929-1930. Utrecht, Holanda: Keminken Zoon, 2001.
Citace podle MLA (8th ed.)Não informado. Snellius-expedition in the Eastern Part of the Netherlands-East-Indies, 1929-1930. Keminken Zoon, 2001.
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