73.
The answer is: B
Explanation
The correct option is B: The Concept of Law.
This is because H.L.A. Hart is the author of The Concept of Law, which is a 1961 book that presents his theory of legal positivism and his analysis of the nature and functions of law. The Concept of Law is widely recognized as the most important work of legal philosophy published in the twentieth century, and remains the starting point for most students coming to the subject for the first time.
Option A is incorrect because Province and Function of Law is a book by Julius Stone, who was a prominent Australian jurist and professor of jurisprudence. Stone's book explores the role and purpose of law in society, and examines various legal systems and doctrines from a comparative and historical perspective.
Option C is incorrect because Social Dimensions of Law is a book by Susan S. Silbey and Patricia Ewick, who are American sociologists and professors of law. Silbey and Ewick's book investigates how law shapes and is shaped by social life, and how people experience and understand law in their everyday lives.
Option D is incorrect because Theories of Social Change is a book by Mark Abrahamson, who is an American sociologist and professor emeritus at Yale University. Abrahamson's book reviews and evaluates the major theories of social change, such as modernization, dependency, world-systems, evolutionary, and postmodern theories.