Fundamentals of Swimming Techniques: Swimming Strokes 07:42
Development of Sports from the 20th Century in America 04:35
Measurement of Air Pressure, Wind Speed, Wind Direction, Radiation and Sunshine Durations 08:21
Physical education and Sports in the United States of America 03:46
Equipment and Maintenance of Standard Meteorological Station 08:49
Physical Education in great Britain 03:21
Seasonal Variations in Evaporation and Rainfall 06:47
Seasonal Variations in Radiation, Daylight and Temperature 05:44
Physical Education and Sports in greece 05:49
Physical Education and Sports in the Contemporary Nigeria 03:38
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