T The origin of protein and fatty yolk in Rana pipiens.Electron microcopical and cytochemical observation of young and mature oocytes J..Ward;R;.Cell.Biol.1962,
T The origin of protein and fatty yolk in Rana pipiens.Electron microcopical and cytochemical observation of young and mature oocytes J..Ward;R;.Cell.Biol.1962,