Παραπομπή σε μορφή APA (7η εκδ.)

BOWLES, J. E., & BOWLES, J. E. (1974). Analytical And Computer Methods In Foundation Engineering / Joseph E.bowles. McGraw-Hill.

Παραπομπή σε μορφή Chicago (17η εκδ.)

BOWLES, Joseph E., και Joseph E. BOWLES. Analytical And Computer Methods In Foundation Engineering / Joseph E.bowles. McGraw-Hill, 1974.

Παραπομπή σε μορφή MLA (8th εκδ.)

BOWLES, Joseph E., και Joseph E. BOWLES. Analytical And Computer Methods In Foundation Engineering / Joseph E.bowles. McGraw-Hill, 1974.