Leaf Architecture of the AngiospermsLeo J. Hickey, David W. Taylor · First published 2010Open the Tome
Flowering plant origin, evolution & phylogenyLeo J. Hickey · First published 1995 · Latest edition 1996Open the Tome
Cretaceous and Tertiary stratigraphy, paleontology, and structure, southwestern Maryland and northeastern VirginiaNorman O. Frederiksen, Kathleen Krafft, Leo J. Hickey, Lauck W. Ward · First published 1984Open the Tome
Stratigraphy and palaeobotany of the Golden Valley formation (early Tertiary) of Western North DakotaLeo J. Hickey · First published 1977Open the Tome
Stratigraphy and paleobotany of the Golden Valley Formation (Early Tertiary) of western North DakotaLeo J. Hickey · First published 1977Open the Tome
Clasificacion de la Arquitectura de las Hojas de DicotiledoneasLeo J. Hickey · First published 1974Open the Tome
