P︠i︡atiznachnye tabli︠t︡sy trigonometricheskikh funk︠t︡siĭ, soderzhashchie naturalʹnye znacheni︠i︡a shesti trigonometricheskikh funk︠t︡siĭ cherez 1ʺ ot 0 do 360̊ i znacheni︠i︡a kontangensov i kosekansov cherez 1ʺ ot O̊00ʺ do 1̊00ʺ i cherez 10ʺ ot 1 do 10̊ - Khrenov, Leonid Sergeevich (Nauka, 1975)