Lawson, Audrey. 1949. An outline of the relationship system of the Nyanja and Yao tribes in south Nyasaland. African Studies 8. 180-190.
@article{lawson1949, author = {Lawson, Audrey.}, journal = {African Studies}, key = {Lawson (1949)}, pages = {180-190}, title = {An outline of the relationship system of the Nyanja and Yao tribes in south Nyasaland}, volume = {8}, year = {1949} }