Institut pochvovedeni︠i︡a i agrokhimii (Akademi︠i︡a nauk SSSR), Vseso︠i︡uznoe obshchestvo pochvovrdov (Soviet Union). Novosibirskoe otdelenie, & Kovalev, R. V. (1984). Problemy ispolʹzovani︠i︡a i okhrany pochv Sibiri i Dalʹnego Vostoka. Izd-vo "Nauka," Sibirskoe otd-nie.
Παραπομπή σε μορφή Chicago (17η εκδ.)Institut pochvovedeni︠i︡a i agrokhimii (Akademi︠i︡a nauk SSSR), Vseso︠i︡uznoe obshchestvo pochvovrdov (Soviet Union). Novosibirskoe otdelenie, και Roman Viktorovich Kovalev. Problemy Ispolʹzovani︠i︡a I Okhrany Pochv Sibiri I Dalʹnego Vostoka. Novosibirsk: Izd-vo "Nauka," Sibirskoe otd-nie, 1984.
Παραπομπή σε μορφή MLA (8th εκδ.)Institut pochvovedeni︠i︡a i agrokhimii (Akademi︠i︡a nauk SSSR), et al. Problemy Ispolʹzovani︠i︡a I Okhrany Pochv Sibiri I Dalʹnego Vostoka. Izd-vo "Nauka," Sibirskoe otd-nie, 1984.