00413nam a2200145Ia 4500008004100000082001400041100001600055245004800071260005700119300000800176650002300184650001800207653001700225700002500242170901s1955 xx 000 0 und d a582bP69L aPorter, R.H 0aLaboratory Manual for Botany of Seed Plants aSouth Sixth StreetbBurgess Publishing Companyc1955 a132 aBotanical sciences aPure Sciences aPlants, Seed aLivingston, Clark. H