Volfkovich S., Dubovetskiy A., Kryuchkov N. i dr. Tekhnologiya azotnykh udobreniy./Volfkovich S., Dubovetsky A., Kryuchkov N. et al. Nitrogen fertilizer technology In Russian (ask us if in doubt) - landofmagazines.com

TransliterationVolfkovich S., Dubovetskiy A., Kryuchkov N. i dr. Tekhnologiya azotnykh udobreniy.

In EnglishVolfkovich S., Dubovetsky A., Kryuchkov N. et al. Nitrogen fertilizer technology In Russian (ask us if in doubt)

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