Ch Lemmens Gerard W. & Brewers Supply Group. The breeding and parentage of hop varieties.
Cita Chicago (17th ed.)Ch Lemmens Gerard W. i Brewers Supply Group. The Breeding and Parentage of Hop Varieties.
Cita MLA (9th ed.)Ch Lemmens Gerard W. i Brewers Supply Group. The Breeding and Parentage of Hop Varieties.
Atenció: Aquestes cites poden no estar 100% correctes.