Flora Costaricensis / William Burger, editor.

v.40(1977)

Notes on the flora of Costa Rica, I / [by] William C. Burger.

v.31:no.11(1968)

Flora Costaricensis / William Burger, editor.

n.s. no.36(1995)

Flora Costaricensis / William Burger, editor.

n.s. no.33(1993)

Flora Costaricensis / William Burger, editor.

n.s. no.23(1990)

Flora Costaricensis. William Burger, editor. Family #40, Casuarinaceae, Family #41, PIperaceae [by] William Burger.

v.35(1971)

Flora Costaricensis / William Burger, editor.

n.s. no.13(1983)

Flora costaricensis / William Burger, editor.

n.s. no.41(2000)

Useful plants of the Siona and Secoya Indians of eastern Ecuador / William T. Vickers, Timothy Plowman.

n.s. no.15(1984)

Flora Costaricensis : Family #200, Acanthaceae by L.H. Durkee, Family #201, Plantaginaceae by William Burger.

n.s. no.18(1986)

Flora Costaricensis / William Burger, editor.

n.s. no.40(1999)

Flora Costaricensis / William Burger, editor.

n.s. no.28(1991)

Flora Costaricensis / William Burger, editor.

n.s. no.45(2005)

Observations on a collection of Papuan crania / by George A. Dorsey ; with notes on preservation and decorative features by William H. Holmes.

v.2:no.1(1897)