APA aipamena

VESPER, K. H. (1980). New Venture Strategies Karl H. Vesper. Prentice-Hall.

Chicago Style aipamena

VESPER, Karl H. New Venture Strategies Karl H. Vesper. Prentice-Hall, 1980.

MLA aipamena

VESPER, Karl H. New Venture Strategies Karl H. Vesper. Prentice-Hall, 1980.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.