found: Yen, C.M. Tang tai shih chieh she hui chu i ti chi tso pʻai, 1985:t.p. (Tʻo pʻai ti ssu kuo chi)
found: IV Internacional, 2a. quincena de set. 1936.
found: Cercle de Léon Trotsky (Paris, France). 50 ans après la fondation de la IVe Internationale, 1988.
found: al-Miṭraqah, Māyū 89/Yanāyir 90:p. 2 of cover (al-Umamīyah al-Rābiʻah)
found: Quarta internazionale (Rome, Italy), Anno 2, n. 2, publ. 1968:cover (... della IV Internazionale)
found: Marksizam, oportunizam i Balkanska kriza, 1995:t.p. (... Četvrte Internacionale)
found: Śrēṇi-dala-biplaba, 5. Āgasṭa 1975:at head of title (Caturtha Āntarjātika [with the logo of the Fourth International])