Gem citationer

Citação APA (7ª ed.)
Helgeson, J. P., Krueger, S. M., & Upper, C. D. (1969). Control of Logarithmic Growth Rates of Tobacco Callus Tissue by Cytokinins. Plant Physiol.
Citação do estilo Chicago (17ª ed.)
Helgeson, John P., Sharon M. Krueger, e Christen D. Upper. "Control of Logarithmic Growth Rates of Tobacco Callus Tissue by Cytokinins." Plant Physiol 1969.
Citação MLA (9ª ed.)
Helgeson, John P., et al. "Control of Logarithmic Growth Rates of Tobacco Callus Tissue by Cytokinins." Plant Physiol, 1969.
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