Beltran, B. P. (1986). Journey into solitude: A manual for retreats and recollections. Arnoldus Press.
芝加哥风格引文Beltran, Benigno P. Journey into Solitude: A Manual for Retreats and Recollections. Metro Manila: Arnoldus Press, 1986.
MLA引文Beltran, Benigno P. Journey into Solitude: A Manual for Retreats and Recollections. Arnoldus Press, 1986.
警告：这些引文格式不一定是100％准确.