Não informado. (1960). Production Engineers. Institution of Production Engineers.
Citação do estilo Chicago (17ª ed.)Não informado. Production Engineers. London: Institution of Production Engineers, 1960.
Citação MLA (8ª ed.)Não informado. Production Engineers. Institution of Production Engineers, 1960.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.