Variability and mechanisms of secondary forest succession in the aspen ecosystems of northern lower Michigan. Doctor of Philosophy:250pp... 1983.
Variation in the Spiraea alba-latifolia complex. Doctor of Philosophy:124pp... 1958.
Variation in tree size and quality of bigtooth aspen clones. School of Natural Resources. Master of Forestry:69pp... 1960.
Variation of forest site productivity among soil taxonomic units in northern lower Michigan. School of Natural Resources. Doctor of Philosophy:176pp... 1969.
The vascular plants of Emmet and Cheboygan Counties, Michigan: patterns and problems in geographic affinities. Doctor of Philosophy:280pp... 1954.
Wet deposition of mercury in Michigan: meteorological associations and spatial variability. Doctor of Philosophy:265pp... 1995.
Zebra mussel (Dreissena polymorpha) promotion of cyanobacteria in low-nutrient lakes. Department of Biological Sciences. Doctor of Philosophy:158p... 2009.