1. Thermophilic fungi;Cooney,1964
2. A compilation of descriptions of new Penicillium species;Kulik;Agric. Handb. agric. Res. Ser., U.S.D.A.,1968
3. A Manual of the Penicillia;Raper,1949
4. Color standards and color nomenclature;Ridgway,1912
5. Some new and interesting species of micro-fungi;Smith;Trans. Br. mycol. Soc.,1957