Contributions from the University of Michigan Herbarium - University of Michigan Herbarium - Ann Arbor, Michigan (Michigan University of Michigan Herbarium - Ann Arbor, Michigan, 1939)
Título-BPH: Contr. Univ. Michigan Herb. Existencias: 1939-1940 v.1-4; v.5 (agotado); 1941-1942 v.6-8; 1969-1972 v.9 no. 1(agotado), 2-8; 1973 v.10; 1973; 1975; 1977; 1978 v. 11 no.1-5; 1974 v.12; 1978 v.13; 1980 v.14; 1982 v.15; 1987 v.16; 1990 v.17; 1992 v.18; 1993 v.19; 1995 v.20; 1997 v.21; 1999 v.22; 2001 v.23; 2005 v.24; 2007 v.25-
Keywords: Botanica; Plantas