London : William Clowes and Sons Ltd
Majalah, Jurnal, Buletin
Amsterdam : N.V. Drukkerij
Majalah, Jurnal, Buletin
Batavia : Verkink
Majalah, Jurnal, Buletin
Cambridge University Press,
Majalah, Jurnal, Buletin
Washington : Pan American Union, General Secretariet of the Organization of American States
Majalah, Jurnal, Buletin