The gait of the American trotter and pacer : an analysis of their gait by a new method and an investigation of the general principles concerning the proper balancing of motion action and extension Jordan, Rudolf, Jr. creator text book New York W. R. Jenkins Co c1910 1910
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ENG Includes index. Harness racehorses Race horses Training https://www.biodiversitylibrary.org/bibliography/18372 4870057 10.5962/bhl.title.18372 IFA