Hofmann, W., & Gupta, H. Handbuch der Kautschuk-Technologie. Gupta.
Chicago Style (17th ed.) CitationHofmann, Werner, and Heinz Gupta. Handbuch Der Kautschuk-Technologie. Ratingen: Gupta.
MLA (9th ed.) CitationHofmann, Werner, and Heinz Gupta. Handbuch Der Kautschuk-Technologie. Gupta.
Warning: These citations may not always be 100% accurate.