United States. War Department, Dictionary of Spoken Russian — §23… (1945)
“ Followed by нибудь, written with a hyphen, they mean "any" or "some," implying that there is no identification: кто-нибудь "anybody, anybody at all," как-нибудь "in some way or other, in any way." In writing and in bookish speech либо is sometimes used instead: кто-либо. ”
