Não informado. (1974). AID research and development abstracts. Agency for International Development.
Citação do estilo Chicago (17ª ed.)Não informado. AID Research and Development Abstracts. Washington: Agency for International Development, 1974.
Citação MLA (8ª ed.)Não informado. AID Research and Development Abstracts. Agency for International Development, 1974.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.