Slippery Rock University, Slippery Rock, PA. First Slippery Rock Normal School, then College and now University. Part of a great state university system here in PA. Many teachers have been graduates including Georgia McCandless Marburger, 1912.
Vaca jersolanda pode ajudar a reduzir emissões da bovinocultura leiteira
Phosphorus is vital for life on Earth – and we’re running low
Publicação conta a história da pesquisa do solo no Nordeste