APA-referens

Perrin, R. (1971). Focus the future: An introduction to long range corporate planning. Management.

Chicago-stil citat

Perrin, Robert. Focus the Future: An Introduction to Long Range Corporate Planning. London: Management, 1971.

MLA-referens

Perrin, Robert. Focus the Future: An Introduction to Long Range Corporate Planning. Management, 1971.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.