Natural Resources is a soul album released by Motown girl group Martha Reeves and the Vandellas in 1970 on the Gordy (Motown) label. The album is significant for the Vietnam War ballad "I Should Be Proud" and the slow jam, "Love Guess Who". The album marked a return from lead singer Martha Reeves, recovering from a time in a mental institution after an addiction to painkillers nearly wrecked her (though it still took her until 1977 to beat her addiction). This was the next-to-last album for the Vandellas, whose success had peaked in the mid-1960s.