Grigor︠i︡an, D. I., & Ivanov, M. V. (1987). Globalʹnyĭ biogeokhimicheskiĭ ︠t︡sikl sery v prirode i vli︠i︡anie na nego de︠i︡atelʹnosti cheloveka: Ukazatelʹ otechestvennoĭ i zarubezhnoĭ literatury, 1971-1985. Nauch. ︠t︡sentr biologicheskikh issl. AN SSSR v Pushchine.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিGrigor︠i︡an, D. I., এবং M. V. Ivanov. Globalʹnyĭ Biogeokhimicheskiĭ ︠t︡sikl Sery V Prirode I Vli︠i︡anie Na Nego De︠i︡atelʹnosti Cheloveka: Ukazatelʹ Otechestvennoĭ I Zarubezhnoĭ Literatury, 1971-1985. Pushchino: Nauch. ︠t︡sentr biologicheskikh issl. AN SSSR v Pushchine, 1987.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিGrigor︠i︡an, D. I., এবং M. V. Ivanov. Globalʹnyĭ Biogeokhimicheskiĭ ︠t︡sikl Sery V Prirode I Vli︠i︡anie Na Nego De︠i︡atelʹnosti Cheloveka: Ukazatelʹ Otechestvennoĭ I Zarubezhnoĭ Literatury, 1971-1985. Nauch. ︠t︡sentr biologicheskikh issl. AN SSSR v Pushchine, 1987.