Cambridge, MA: Harvard University Press, 1967. dj. Hardcover first edition - Labour policies in Portuguese Africa and the British protest, 1850-1920. In Mozambique and Angola, despite well-intentioned legislation, a form of slavery existed until well into the 20th century - this weakened Portugal in relation to her other colonial neighbors, and kept her embroiled in controversy with the British government and a group of British humanitarians. Maps, index. 240 pp.