Contreras, V. T., Araque, W., & Delgado, V. S. (1994, June). Trypanosoma cruzi: Metacyclogenesis in vitro - I. Changes in the properties of metacyclic trypomastigotes maintained in the laboratory by different methods. Memorias do Instituto Oswaldo Cruz.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Contreras, Víctor T., Wolfan Araque, و Víctor S. Delgado. "Trypanosoma Cruzi: Metacyclogenesis in Vitro - I. Changes in the Properties of Metacyclic Trypomastigotes Maintained in the Laboratory by Different Methods." Memorias Do Instituto Oswaldo Cruz Jun. 1994.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Contreras, Víctor T., et al. "Trypanosoma Cruzi: Metacyclogenesis in Vitro - I. Changes in the Properties of Metacyclic Trypomastigotes Maintained in the Laboratory by Different Methods." Memorias Do Instituto Oswaldo Cruz, Jun. 1994.