BLAGA PA. Gerard Walschap, Multivariable Calculs and Differential Geometry, Walter de Gruyter (De Gruyter Graduate), 2015, ix+355 pages, Paperback, ISBN 978-3-11- 036949-6. Stud. Univ. Babeş-Bolyai Math. [Internet]. 2015 Dec. 30 [cited 2025 Feb. 5];60(4):625-6. Available from: https://studia.reviste.ubbcluj.ro/index.php/subbmathematica/article/view/5842