Alexander H & Hesler L R, S. (1963). North American species of hygrophorus. The university of tennessee press.
Chicago Edition CitationAlexander H and Smith Hesler L R. North American Species of Hygrophorus. Knoxville: The university of tennessee press, 1963.
MLA Edition CitationAlexander H and Smith Hesler L R. North American Species of Hygrophorus. The university of tennessee press, 1963.
Warning: These citations may not always be 100% accurate.