Plant Growth Regulators, Kudrev, T. G., Ivanova, I., & Karanov, E. N. (1977). Plant Growth Regulators: Proceedings of the Second International Symposium on Plant Growth Regulators = Rastežni regulatori : materialy ot Vtorija meždunaroden simpozium po rastežni regulatori. Sofia: Publishing House of the Bulgaria Academy of Sciences.
Styl ChicagoPlant Growth Regulators, Todor Georgijev Kudrev, I. Ivanova, and Emmanuil Nikolajevič Karanov. Plant Growth Regulators: Proceedings of the Second International Symposium On Plant Growth Regulators = Rastežni Regulatori : Materialy Ot Vtorija Meždunaroden Simpozium Po Rastežni Regulatori. Sofia: Publishing House of the Bulgaria Academy of Sciences, 1977.
Citace podle MLAPlant Growth Regulators, Todor Georgijev Kudrev, I. Ivanova, and Emmanuil Nikolajevič Karanov. Plant Growth Regulators: Proceedings of the Second International Symposium On Plant Growth Regulators = Rastežni Regulatori : Materialy Ot Vtorija Meždunaroden Simpozium Po Rastežni Regulatori. Sofia: Publishing House of the Bulgaria Academy of Sciences, 1977.