Não informado. (1955). Personnel Management Abstracts. University of Michigan, Graduate School of Business Administration.
Citação do estilo Chicago (17ª ed.)Não informado. Personnel Management Abstracts. Ann Arbor, Mich: University of Michigan, Graduate School of Business Administration, 1955.
Citação MLA (8ª ed.)Não informado. Personnel Management Abstracts. University of Michigan, Graduate School of Business Administration, 1955.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.