Tropical American plants, III / Louis O. Williams.

v.29:no.7(1962)

Flora of Guatemala / Paul C. Standley, Louis O. Williams, Dorothy Nash Gibson.

v.24:pt.10:no.3-4(1974)

Flora of Guatemala / Paul C. Standley and Louis O. Williams.

v.24:pt.8:no.4(1969)

Flora of Guatemala / Paul C. Standley and Louis O. Williams.

v.24:pt.8:no.1-2(1966)

Hoffmannias from Mexico and Central America [by] Louis O. Williams.

v.36:no.6(1973)

Tropical American plants, XVII / Louis O. Williams.

v.36:no.10(1975)

Bignoniaceae of tropical North America [by] Louis O. Williams.

v.36:no.4(1973)

Tropical American plants, XII / Louis O. Williams.

v.34:no.8(1972)

Eplingia, a new genus of the Labiatae from Mexico [by] Louis O. Williams.

v.36:no.3(1973)

Ornithological notes from Point Barrow, Alaska, by Louis B. Bishop.

v.29:no.12(1944)

Album of Abyssinian birds and mammals / From paintings by Louis Agassiz Fuertes.

Fieldiana Zoology Special Handbooks

Transactions of the Academy of Science of St. Louis.

v.21 (1912)

Transactions of the Academy of Science of St. Louis.

v.14 (1904)

Transactions of the Academy of Science of St. Louis.

v.22 (1913)