J. K. P. DavisUnited States. Congress. House. Committee on Claims · First published 1911Open the Tome
Principles of angiosperm taxonomy [by] P.H. Davis [and] V.H. HeywoodPeter Hadlund Davis · First published 1967Open the Tome
Principles of Angiosperm Taxonomy by P. H. Davis and V. H. Heywood by P. H. Davis and V. H. Heywood by P. H. Davis and V. H. Heywood by P. H. Davis and V. H. Heywood by P. H. Davis and V. H. Heywood by P. H. Davis and V. H. HeywoodDavis & Heywood · First published 1965Open the Tome