Vitamin P /
Benthsáth, A.
Vitamin P / by A. Benthsáth ... [et al.] - London : [s.n.], 1936 - 1 p. ; 23 cm - Nature ; 138 .
Vitamin P / by A. Benthsáth ... [et al.] - London : [s.n.], 1936 - 1 p. ; 23 cm - Nature ; 138 .