Hannerberg, D. (1955). Die älteren skandinavischen Ackermasse. Lund studies in geography : Series B, Human geography 12.
Chicago Stili AlıntıHannerberg, David. "Die älteren Skandinavischen Ackermasse." Lund Studies in Geography : Series B, Human Geography 12 1955.
MLA AlıntıHannerberg, David. "Die älteren Skandinavischen Ackermasse." Lund Studies in Geography : Series B, Human Geography 12 1955.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..