Shiva Purana
चत्वारि भारते वर्षे युगान्यासन्महामुने ॥ कृतादीनि न चान्येषु द्वीपेषु प्रभवंति हि॥ १५॥
O great sage, all the four Yugās Kṛta and others are followed in Bhārata and not in the other Dvīpas.
english translation
catvAri bhArate varSe yugAnyAsanmahAmune ॥ kRtAdIni na cAnyeSu dvIpeSu prabhavaMti hi॥ 15॥
hk transliteration by Sanscript