Howard, Thad M.. "Zingiberaceae". Bulbs for Warm Climates, New York, USA: University of Texas Press, 2001, pp. 227-236. https://doi.org/10.7560/731257-024
Howard, T. (2001). Zingiberaceae. In Bulbs for Warm Climates (pp. 227-236). New York, USA: University of Texas Press. https://doi.org/10.7560/731257-024
Howard, T. 2001. Zingiberaceae. Bulbs for Warm Climates. New York, USA: University of Texas Press, pp. 227-236. https://doi.org/10.7560/731257-024
Howard, Thad M.. "Zingiberaceae" In Bulbs for Warm Climates, 227-236. New York, USA: University of Texas Press, 2001. https://doi.org/10.7560/731257-024
Howard T. Zingiberaceae. In: Bulbs for Warm Climates. New York, USA: University of Texas Press; 2001. p.227-236. https://doi.org/10.7560/731257-024