APA (7th ed.) Citation

(1989). Ullmann's encyclopedia of industrial chemistry Barbara Elvers ... (et al.) (5th completely rev. ed.). VCH.

Chicago Style (17th ed.) Citation

Ullmann's Encyclopedia of Industrial Chemistry Barbara Elvers ... (et Al.). 5th completely rev. ed. VCH, 1989.

MLA (9th ed.) Citation

Ullmann's Encyclopedia of Industrial Chemistry Barbara Elvers ... (et Al.). 5th completely rev. ed. VCH, 1989.

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