[dynamic_sausage]

Indeed, this is one misleading title. The Soviets were really fond of Steinbeck and especially the Grapes of Wrath (the book) up until the moment he wrote positively of the American troops in Vietnam in the 60s. After that, all his books were pulled from libraries and weren't reissued/published until Perestroika, when 6-volume collected works were released in 1989.

[Mikhail_Edoshin]

I do indeed have those six volumes of 1989. 1,700,000 copies; that is some number. But I doubt Steinbeck was pulled from libraries or wasn't published since 60s. Here's what I can see in 1970-1989 when I browse an online library catalog here:

    1977: volume #183 in the famous "All-world literature" series
    1981: two-volume selected works, Moscow
    1985: selected works, Minsk
    1986: selected works, Kishinev 
    1987: selected works, Moscow

I also see publications in multi-author volumes, a book of Steinbeck letters (1985), Steinbeck in Azerbaijan language (1983), a book about Steinbeck (1984). Maybe there was a cooler period toward him, but a ban is unlikely.