Groff, G., Clark, G. The Botany of ephedra in relation to the yield of physiologically active substances. Berkeley: Univ. California Press, 1928 247-282 p. ill.
Groff, G., Clark, G. The Botany of ephedra in relation to the yield of physiologically active substances. Berkeley: Univ. California Press, 1928 247-282 p. ill.
Groff, G., Clark, G. (1928) The Botany of ephedra in relation to the yield of physiologically active substances, Berkeley: Univ. California Press 247-282 p. ill.
Groff, G., & Clark, G. (1928). The Botany of ephedra in relation to the yield of physiologically active substances. Berkeley: Univ. California Press, 247-282 p. ill.
Groff G, Clark G. The Botany of ephedra in relation to the yield of physiologically active substances. Berkeley: Univ. California Press; 1928. p. 247-282 p. ill.
