SirsiDynix Enterprise https://katalog.hacettepe.edu.tr/client/tr_TR/default_tr/default_tr/qu$003dGeography$002b--$002bPeriodicals$0026ps$003d300? 2026-04-23T17:42:23Z ent://SD_ILS/0/SD_ILS:228792 2026-04-23T17:42:23Z 2026-04-23T17:42:23Z Yazar&#160;National Geographic Society (U.S.)<br/>Format:&#160;Devam Eden S&uuml;reli Yay&#305;nlar&#160;Di&#287;er<br/>Durum&#160;~0<br/> ent://SD_ILS/0/SD_ILS:229353 2026-04-23T17:42:23Z 2026-04-23T17:42:23Z Yazar&#160;Simavi, Sedat.<br/>Format:&#160;Devam Eden S&uuml;reli Yay&#305;nlar&#160;Di&#287;er<br/>Durum&#160;~0<br/>