Practical suggestions for the learning of an african language in the field

von Ward, Ida Caroline
Africa : Supplement vol. 10, no. 2
London : Millbank House, 1937.
Umfang/Format: 39 S.

Practical phonetics for students of African languages

von Westermann, Diedrich, 1875-1956
London [et al.] : Oxford Univ. Pr., 1966.
Umfang/Format: 169 p. ; 19 cm.