Perrin, R. (1971). Focus the future: An introduction to long range corporate planning. Management.
Chicago-стиль цитированияPerrin, Robert. Focus the Future: An Introduction to Long Range Corporate Planning. London: Management, 1971.
MLA-цитированиеPerrin, Robert. Focus the Future: An Introduction to Long Range Corporate Planning. Management, 1971.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.