Não informado. (1966). Communication of the Department of Agricultural Research of the Royal Tropical Institute. Instituut voor de Tropen.
Chicago-viite (17. p.)Não informado. Communication of the Department of Agricultural Research of the Royal Tropical Institute. Amsterdam: Instituut voor de Tropen, 1966.
MLA-viite (8. p.)Não informado. Communication of the Department of Agricultural Research of the Royal Tropical Institute. Instituut voor de Tropen, 1966.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.