Natyashastra
वालं न सुकलं(चतुष्कलं) ज्ञेयं दशशब्दलयान्तरम् । पञ्चषष्टिकलं ज्येष्ठं त्रयस्त्रिंशत्तु मध्यमम् ॥ १४८॥
The short (lit. youngest) ॥ Āsārita॥ consists of nine Kalās, the Layāntara (=Layantarita) of seventeen Kalās, the medium ॥ Āsārita॥ of thirty-three, and the long of sixty-five Kalās.
english translation
vAlaM na sukalaM(catuSkalaM) jJeyaM dazazabdalayAntaram । paJcaSaSTikalaM jyeSThaM trayastriMzattu madhyamam ॥ 148॥
hk transliteration by Sanscript