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- [27] TECHNICAL CONSIDERATIONS IN VACCINATION PROGRAMS BOLETIN DE LA OFICINA SANITARIA PANAMERICANA, 1969, 66 (05): : 385 - &
- [28] FUTURISTIC CONSIDERATIONS FOR SUMMER PROGRAMS AGRICULTURAL EDUCATION, 1976, 48 (12): : 267 - 268
- [29] FRACTURE CONSIDERATIONS FOR SURVEILLANCE PROGRAMS ASTRONAUTICS & AERONAUTICS, 1976, 14 (06): : B24 - B24