TY - BOOK AU - Mauseth,James D. TI - Cytokinin-Elicited formation of the pith-rib meristem and other effects of growth regulators on the morphogenesis of echinocereus (Cactaceae)seedling shoot apical meristems UR - https://drive.google.com/file/d/1nKNSvwdGOwOMNFxqYWVs3hOELkf3n6cV/view?usp=drivesdk ER -