Holst, H. (1961). Kleine Kakao-Kunde. De Gruyter.
Chicago Style (17th ed.) CitationHolst, Herbert. Kleine Kakao-Kunde. [Place of publication not identified]: De Gruyter, 1961.
MLA (9th ed.) CitationHolst, Herbert. Kleine Kakao-Kunde. De Gruyter, 1961.
Warning: These citations may not always be 100% accurate.