Brihat Parashara Hora Shastra
दृष्टिचक्रमहं वक्ष्ये ययावद् ब्रह्मणोदितम्। तस्य विन्यासमात्रेण दृष्टिभेदः प्रकाश्यते॥ ६॥
Diagram of Dristhis. As depicted by Lord Brahma, I now narrate the diagram of Drishtis, so that Drishtis are easily understood by a mere sight of the diagram.
english translation
dRSTicakramahaM vakSye yayAvad brahmaNoditam। tasya vinyAsamAtreNa dRSTibhedaH prakAzyate॥ 6॥
hk transliteration by Sanscript