Regier, P. J. (1977). A Learner's Guide to the Old Church Slavic Language. Teil 1: Grammar with Exercises: Teil 1: Grammar with Exercises. Peter Lang International Academic Publishing Group.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিRegier, Philip J. A Learner's Guide to the Old Church Slavic Language. Teil 1: Grammar with Exercises: Teil 1: Grammar with Exercises. Bern: Peter Lang International Academic Publishing Group, 1977.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিRegier, Philip J. A Learner's Guide to the Old Church Slavic Language. Teil 1: Grammar with Exercises: Teil 1: Grammar with Exercises. Peter Lang International Academic Publishing Group, 1977.
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