The Montgomery County Chapter of the American Red Cross is asking blood donors to visit one of the following bloodmobiles during August. Since bloodmobile locations change, donors are asked to call 588-2515 or 588-2521 ahead of time.

Today -- Montgomery County Public Schools Educational Services Center, 850 Hungerford Dr., Rockville, 9:30 a.m. to 3:30 p.m.

Holladay-Tyler Printing Company, 1900 Chapman Ave., Rockville, 1 to 7 p.m. Call 881-8050 for appointment.

Aug. 15 -- Rockville City Hall, 111 Maryland Ave., Rockville, 9:30 a.m. to 3:30 p.m. Call 279-1281 for appointment.

Aug. 16 -- St. Luke's Episcopal Church, 6100 Grosvenor La., Bethesda, 9 a.m. to noon. (Special bloodmobile to provide for leukemia patients.)

Aug. 18 -- Asbury Village, 401 Russell Ave., Gaithersburg, 10 a.m. to 4 p.m.

Aug. 22 -- Bechtel, 15740 Shady Grove Rd., Gaithersburg, 9:30 a.m. to 3:30 p.m.

Digital Communications Center, 11717 Exploration La., Germantown, 9 a.m. to 3 p.m.

Aug. 23 -- Chapter House, 2020 East-West Highway, Silver Spring, 9 a.m. to noon. Call 558-2515 or 558-2521 for appointment. (Special bloodmobile to provide for leukemia patients.)

Aug. 25 -- Maryland-National Capital Park and Planning Commission, 8787 Georgia Ave., Silver Spring, 9:30 a.m. to 3:30 p.m. Call 565-7524 for appointment.

One Central Plaza, 11300 Rockville Pike, Rockville, 9 a.m. to 3 p.m. Call 468-2805 for appointment.

Aug. 26 -- Marriott Corporation, Marriott Drive, Bethesda, 9 a.m. to 3 p.m. Call 897-7537 for appointment.

Aug. 27 -- Bethesda United Methodist Church, 8300 Old Georgetown Rd., Bethesda, 2 to 8 p.m.

Aug. 28 -- Sports Chevrolet, 3101 Automobile Blvd., Silver Spring, 9 a.m. to 3 p.m. Call 890-6000 for appointment.