Coffee cultivation at the Gold Coast. Royal Botanic Gardens, Kew, Bull. of Misc. Information, 1895: 21–23; 1897: 325–328.
GUADELOUPE
Coffee in Guadeloupe. The Tea and Coffee Trade Journal, 1912, XXIII: 445.
GUATEMALA
Dieseldorff, E.P. Der Kaffeebaum. Praktische Erfahrungen über seine Behandlung im nördlichen Guatemala. Berlin, 1908. 36 pp.
Morren, F.W. Koffiecultuur in Guatemale, met aanteekeningen betreffende de overige cultures de mijnen en den economischen toestand van deze republiek. Amsterdam, 1899. 142 pp.
Parkhurst, E.T.Y. Coffee in Guatemala. Californian Magazine, II: 742.
GUIANA
Aublet, Fusée. Histoire des plantes de la Guyane française. Observations sur la culture du café. Paris, 1775.
Guiana (British) Permanent exhibitions committee. Cacao and coffee industries. Leaflet 6. 1911. 12 pp.