Não informado. (1968). Rhodesian journal of agricultural research. Department of Research and Specialist Services.
Lua i Stíl Chicago (17ú heag.)Não informado. Rhodesian Journal of Agricultural Research. Salisbury, Zimbabwe: Department of Research and Specialist Services, 1968.
Lua MLA (8ú heag.)Não informado. Rhodesian Journal of Agricultural Research. Department of Research and Specialist Services, 1968.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.