Sahlberg, R. F. (1844). In faunam insectorum rossicam symbola: Novad as Ochotsk lectas carabicorum species continens : quam tenia amplissimae facultatis philosophicae as Universitates Imperialem Alexandream in Fennia. Ex officina Typographica Frenckelliana.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Sahlberg, Reginaldus Ferdinandus. In Faunam Insectorum Rossicam Symbola: Novad as Ochotsk Lectas Carabicorum Species Continens : Quam Tenia Amplissimae Facultatis Philosophicae as Universitates Imperialem Alexandream in Fennia. Helsingforsiae: Ex officina Typographica Frenckelliana, 1844.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Sahlberg, Reginaldus Ferdinandus. In Faunam Insectorum Rossicam Symbola: Novad as Ochotsk Lectas Carabicorum Species Continens : Quam Tenia Amplissimae Facultatis Philosophicae as Universitates Imperialem Alexandream in Fennia. Ex officina Typographica Frenckelliana, 1844.