APA citiranje

Dunckel, E. B. (1970). The business environment of the seventies: A trend analysis for business planning. New York: McGraw- Hill.

Trích dẫn kiểu Chicago

Dunckel, Earl B. The Business Environment of the Seventies: A Trend Analysis for Business Planning. New York: McGraw- Hill, 1970.

MLA citiranje

Dunckel, Earl B. The Business Environment of the Seventies: A Trend Analysis for Business Planning. New York: McGraw- Hill, 1970.