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Youth sports: participation, trainability and readiness. Coimbra: [s.n.]. 219 p. ISBN 978-989-26-1170-9.
- Youth Sports: participation, trainability and readiness. Coimbra: [s.n.]. 219 p. ISBN 978-989-26-0507-4 (PDF).
- Youth Sports: growth, maturation and talent. 2ª ed. Coimbra: [s.n.]. 227 p. ISBN 978-989-26-1168-6.
- Youth sports: growth, maturation and talent. Coimbra: [s.n.]. 227 p. ISBN 978-989-26-0507-4 (PDF).
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