Brihat Parashara Hora Shastra
गुलिकेष्टवशाल्लग्नं स्फुटं यत् स्वस्वदेशजम्। गुलिकं प्रोच्यते तस्माज्जातकस्य फलं वदेत्॥ ७०॥
Gulik‟s Position. The degree, ascending at the time of start of Gulik‟s portion (as above), will be the longitude of Gulik at a given place. Based on this longitude only, Gulik‟s effects for a particular nativity be estimated.
english translation
gulikeSTavazAllagnaM sphuTaM yat svasvadezajam। gulikaM procyate tasmAjjAtakasya phalaM vadet॥ 70॥
hk transliteration by Sanscript