The cyclopædia of anatomy and physiology. Ed. by Robert B. Todd ...

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The fishes of Illinois / Stephen Alfred Forbes and Robert Earl Richardson.

2nd ed.

A taxonomic revision of the genus Cnemidaria (Cyatheaceae) / Robert G. Stolze.

v. 37(1974)

Ferns and fern allies of Guatemala / Robert G. Stolze.

v.39(1976)

Pteridophyta of Peru. Rolla M. Tryon, Robert G. Stolze ; with the collaboration of John T. Mickel, Robbin C. Moran.

n.s. no.27(1991)

Ferns and fern allies of Guatemala. Robert G. Stolze ; the genus Elaphoglossum by: John T. Mickel ; the genus Thelypteris by: Alan R. Smith.

n.s. no.6(1981)

Pteridophyta of Peru. Rolla M. Tryon, Robert G. Stolze ; with the collaboration of Blanca León.

n.s. no.32(1993)

Pteridophyta of Peru. Rolla M. Tryon, Robert G. Stolze.

n.s. no.22(1989)

Pteridophyta of Peru. Rolla M. Tryon, Robert G. Stolze ; contributed by Alan R. Smith.

n.s. no.29(1992)

Pteridophyta of Peru. Rolla M. Tryon, Robert G. Stolze.

n.s. no.20(1989)

Pteridophyta of Peru. Rolla M. Tryon, Robert G. Stolze ; with the collaboration of: R. James Hickey, Benjamin Øllgaard.

n.s. no.34(1994)

Geographic variation and evolutionary relationships among broad-clawed shrews of the Cryptotis goldmani-group (Mammalia, Insectivora, Soricidae) / Neal Woodman, Robert M. Timm.

n.s. no.91(1999)

Late Devonian fresh-water fishes from the western United States / Robert H. Denison --

v.11:no.5(1951)

The Paragould meteorite / Sharat Kumar Roy -- and Robert Kriss Wyant --

v.10:no.23(1955)