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2. “The Complete Book of Chrysanthemums.”;Ackerson,1957
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4. “After-lighting of chrysanthemums.”;Ben-Jaacov;N.Y. State Flower Grow. Bull,1969
5. “Gibberellin sprays to increase stem length of ‘May Shoesmith’ chrysanthemums.”;Byrne;Florists’ Rev,1976