Wolff, W., Von Banano zum Kiamwo. 1889.
Woodford, C. M., A naturalist among the head-hunters. 1890.
Woods, J., The native tribes of South Australia. 1879.
Yate, W., An account of New Zealand and of the formation and progress of the Church Missionary Society’s Mission in the Northern Island. Second edition. 1835.
Ypes, W. K. H., Nota omtrent Singkel en de Pak-paklanden. Tijds. XLIX.
Zenker, G., Yaunde. M. D. S. VIII.
Zondervan, H., Timor en de Timoreezen. T. A. G. 2nd series V.
Zündel, G., Land und Volk der Eweer auf der Sklavenküste in West-Afrika. Z. G. Erd. XII (1877). [[467]]