APA aipamena

HOLUM, J. R. (1977). TOPICS AND TERMS IN ENVIRONMENTAL PROBLEMS. JOHN WILEY.

Chicago Style aipamena

HOLUM, JOHN R. TOPICS AND TERMS IN ENVIRONMENTAL PROBLEMS. NEW YORK: JOHN WILEY, 1977.

MLA aipamena

HOLUM, JOHN R. TOPICS AND TERMS IN ENVIRONMENTAL PROBLEMS. JOHN WILEY, 1977.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.