Philippines (Republic). Bureau of Agricultural Extension. (1955). 4-H club work: A manual for extension workers and leaders. [s.n.
Cita Chicago (17th ed.)Philippines (Republic). Bureau of Agricultural Extension. 4-H Club Work: A Manual for Extension Workers and Leaders. Manila: [s.n, 1955.
Cita MLA (9th ed.)Philippines (Republic). Bureau of Agricultural Extension. 4-H Club Work: A Manual for Extension Workers and Leaders. [s.n, 1955.
Atenció: Aquestes cites poden no estar 100% correctes.