Lum, A., & Siemens,Ruth. (1973). Creative Bible Study: A manual for training Bible study leaders. Jyoti Pocket Books.
Čikaški stil citiranja (17. izdanje)Lum, Ada, i Siemens,Ruth. Creative Bible Study: A Manual for Training Bible Study Leaders. Bombay, India: Jyoti Pocket Books, 1973.
MLA način citiranja (9. izdanje)Lum, Ada, i Siemens,Ruth. Creative Bible Study: A Manual for Training Bible Study Leaders. Jyoti Pocket Books, 1973.
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