Vols. 2-5 have title: Patañjali's Vyākaraṇa Mahabhāṣya.
In Sanskrit, with English added-title page.
v. 1. Navahnika edited by Raghunath Kashinath Shastri and Sivadatta D. Kudala -- v. 2. Vidhiśeṣarūpa edited with foot-notes, collected from Padamañjari and Prātiśākhyas as well as supplied by the editor's own originality, by Śivadatta D. Kudāla and Raghunāthśāstrī -- v. 3. Edited with foot notes, collected from Chhāya Padamañjari and Śabdakaustubha as well as supplied by the editor's own originality, by Raghunāth Kāśīnāth Śāstrī & Śivadatta D. Kudāla -- v. 4 Edited with foot-notes etc., by Bhārgavaśāstrī Joshi Śāstrācārya -- v. 5 Edited with foot-notes etc., by Bhārgavaśāstrī Joshi Śāstrācārya