Second international symposium on in vitro culture and horticultural breeding, Baltimore, Maryland U.S.A., June 28-July 2, 1992 / conveners F.A. Hammerschlag, R.H. Zimmerman ; ed. F.A. Hammerschlag, R.H. Zimmerman, L.D. Owens

Second international symposium on in vitro culture and horticultural breeding, Baltimore, Maryland U.S.A., June 28-July 2, 1992 / conveners F.A. Hammerschlag, R.H. Zimmerman ; ed. F.A. Hammerschlag, R.H. Zimmerman, L.D. Owens