Johansen, Donald Alexander.
Plant embryology : Embryogeny of the spermatophyta Textual Documents Donald Alexander Johansen. - Waltham : Chronica Botanica Co. , 1950. - xvii, 305 p., figs.
Planr Embryology
581.33 / JOH
Plant embryology : Embryogeny of the spermatophyta Textual Documents Donald Alexander Johansen. - Waltham : Chronica Botanica Co. , 1950. - xvii, 305 p., figs.
Planr Embryology
581.33 / JOH