R.D. Lock has taught political science and been a career and guidance counselor for over forty years. He has written five editions of two college texts. Married for fifty years, he and his wife hav...lihat lebih banyakR.D. Lock has taught political science and been a career and guidance counselor for over forty years. He has written five editions of two college texts. Married for fifty years, he and his wife have traveled extensively – including five trips to Spain and Portugal.lihat lebih sedikit