D. Puerto Rico April 1977 casesPiovanetti Pujals v. First Nat. City BankCaballero v. Secretary of H.E.W.Febus Nevárez v. SchlesingerDiaz v. Secretary of Health, Ed. and WelfareSupermercados San Juan, Inc., Matter ofDavid Gonzalez v. CaleroRivera v. FordMedina v. Secretary of Health, Ed. and WelfareMatter of Cuba Elec. Furniture Corp.