ochronka, E. P. (1907). Historya Polskiej Ochronki, W Emsworth, PA. Pittsburgh, Pa..
Chicago Style (17th ed.) Citationochronka, Emsworth. Polska. Historya Polskiej Ochronki, W Emsworth, PA. Pittsburgh, Pa., 1907.
MLA (8th ed.) Citationochronka, Emsworth. Polska. Historya Polskiej Ochronki, W Emsworth, PA. Pittsburgh, Pa., 1907.
Warning: These citations may not always be 100% accurate.