Author

John A. Helms

5 books found

Cover of The dictionary of forestry

The dictionary of forestry

John A. Helms · First published 1998

Cover of Principles Of Silviculture, 2nd Edition

Principles Of Silviculture, 2nd Edition

Theodore W. Daniel, John A. Helms, Frederick S. Baker · First published 1979

Placeholder cover for Seasonal patterns of apparent photosynthesis in Pseudotsuga menziesii (Mirb.) Franco in relation to environment and silvicultural treatment

Seasonal patterns of apparent photosynthesis in Pseudotsuga menziesii (Mirb.) Franco in relation to environment and silvicultural treatment

John A. Helms · First published 1963

Placeholder cover for Some aspects of variation in ponderosa pine with special reference to stem form

Some aspects of variation in ponderosa pine with special reference to stem form

John A. Helms · First published 1960

Cover of Imitation of Christ

Imitation of Christ

Thomas à Kempis, Jérôme de Gonnelieu, Richard Challoner, Ronald Arbuthnott Knox, Michael Oakley, Paul M. Bechtel, Joseph N. Tylenda, Elder Mullan, Henri Belleau, Félicité Robert de Lamennais, John Payne, William C. Creasy, Thomas Rogers, Sixtus V Pope, Hal McElwaine Helms, Harold C. Gardiner, Richard Whitford, Edgar Daplyn, David Alexander MacLennan, E. M. Blaiklock, Aloysius Croft, Harold Bolton, Wilfrid Raynal, Henry Parry Liddon, Jon M. Sweeney, Rev. William Benham, Rev. William Rev. William Benham, Valenti Angelo, Challoner, Leo Sherley-Price, Paul Wesley Chilcote, Pierre Corneille, Thomas Chalmers, George Hickes · First published 1568