Staub, B. R. (1966). Some variations in fruit, seed and seedling characteristics in the American elm, Ulmus Americana L., in relation to geography of seed source.
Chicago Style (17th ed.) CitationStaub, Brother Robert. Some Variations in Fruit, Seed and Seedling Characteristics in the American Elm, Ulmus Americana L., in Relation to Geography of Seed Source. 1966.
MLA (8th ed.) CitationStaub, Brother Robert. Some Variations in Fruit, Seed and Seedling Characteristics in the American Elm, Ulmus Americana L., in Relation to Geography of Seed Source. 1966.
Warning: These citations may not always be 100% accurate.