You can buy citric acid in many of the health-oriented food stores that feature organically grown foods, etc. One such place in my area has it in a drum that you scoop it out of for $7.95lb.
1991 300-SEL - Model 126
M103 - SOHC
James Madison - Oppressors can tyrannize only when they achieve a standing army, an enslaved press, and a disarmed populace.
Liberty Firearms Training - After years of trying to regulate California criminals with a never ending stream of gun control laws they have still not given up with the belief that if they make something a crime that criminals will miraculously start obeying the law.