CREATE TABLE table_59940 ("Spaceport" CLOB, "Launch complex" CLOB, "Launcher" CLOB, "Spacecraft" CLOB, "Flights" CLOB, "Years" CLOB)

What was the launcher vehicle for Apollo-Soyuz?
SELECT "Launcher" FROM table_59940 WHERE "Spacecraft" = 'apollo-soyuz'
SELECT "Launcher" FROM "table_59940" WHERE "Spacecraft" = 'apollo-soyuz'