APA (7th ed.) Citation

Elvers, B., Hawkins, S., Schulz, G., & Ullmann, F. (1990). Ullmann's encyclopaedia of industrial chemistry editors Barbara Elvers, Stephen Hawkins, Gail Schulz. VCH Verlagsgesellschaft.

Chicago Style (17th ed.) Citation

Elvers, Barbara, Stephen Hawkins, Gail Schulz, and Fritz Ullmann. Ullmann's Encyclopaedia of Industrial Chemistry Editors Barbara Elvers, Stephen Hawkins, Gail Schulz. Weinheim: VCH Verlagsgesellschaft, 1990.

MLA (9th ed.) Citation

Elvers, Barbara, et al. Ullmann's Encyclopaedia of Industrial Chemistry Editors Barbara Elvers, Stephen Hawkins, Gail Schulz. VCH Verlagsgesellschaft, 1990.

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