P. J. Viro

发表

USE OF ETHYLENEDIAMINETETRAACETIC ACID IN SOIL ANALYSIS: I. EXPERIMENTAL

P. J. Viro, 1955 .

2 – Effects of Forest Fire on Soil

P. J. Viro, 1974 .

USE OF ETHYLENEDIAMINETETRAACETIC ACID IN SOIL ANALYSIS: II. DETERMINATION OF SOIL FERTILITY

P. J. Viro, 1955 .

Prescribed burning in forestry.

P. J. Viro, 1969 .

Evaluation of site fertility

P. J. Viro, 1961 .