Sulfuric acid rain effects on crop yield and foliar injury /

Mode of access: Internet.

The increase in length of foliar traces in certain evergreen plants /

Thesis (M.S.)--Cornell University, 1916.

Manual de obstetricia, seguido de un estudio sobre la reproduccion, la ontogenia y la filogenia.

Mode of access: Internet.

Important biological and morphological characteristics of the foliar-feeding aphids of pecan /

Issued May 1978.