MIL-PRF-89040A (INTERIM AMENDMENT 1), PERFORMANCE SPECIFICATION: VECTOR PRODUCT INTERIM TERRAIN DATA (VITD) (23 MAY 2000)
MIL-PRF-89040A (INTERIM AMENDMENT 1), PERFORMANCE SPECIFICATION: VECTOR PRODUCT INTERIM TERRAIN DATA (VITD) (23 MAY 2000)., This interim amendment is approved for use within the National Imagery and Mapping Agency, with MIL-PRF-89040A, 8 May 1996.