Gem citationer

Citação APA (7ª ed.)
Helgeson, J. P., & Upper, C. D. (1970). Modification of Logarithmic Growth Rates of Tobacco Callus Tissue by Gibberellic Acid. Plant Physiol.
Citação do estilo Chicago (17ª ed.)
Helgeson, John P., e C. D. Upper. "Modification of Logarithmic Growth Rates of Tobacco Callus Tissue by Gibberellic Acid." Plant Physiol 1970.
Citação MLA (9ª ed.)
Helgeson, John P., e C. D. Upper. "Modification of Logarithmic Growth Rates of Tobacco Callus Tissue by Gibberellic Acid." Plant Physiol, 1970.
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