APA (7th ed.) Citation

(1991). French research into forest decline: DEFORPA-Programme ; forest decline and air pollution ; 2nd report. ENGREF.

Chicago Style (17th ed.) Citation

French Research into Forest Decline: DEFORPA-Programme ; Forest Decline and Air Pollution ; 2nd Report. Nancy: ENGREF, 1991.

MLA (9th ed.) Citation

French Research into Forest Decline: DEFORPA-Programme ; Forest Decline and Air Pollution ; 2nd Report. ENGREF, 1991.

Warning: These citations may not always be 100% accurate.