APA (7th ed.) Citation

Collantes Diaz, A. (1977). El PERT. Index.

Chicago Style (17th ed.) Citation

Collantes Diaz, A. El PERT. Madrid: Index, 1977.

MLA (9th ed.) Citation

Collantes Diaz, A. El PERT. Index, 1977.

Warning: These citations may not always be 100% accurate.