Humphrey announces that he would halt the bombing of North Vietnam. (2013). The History Channel website. Retrieved 4:41, May 23, 2013, from http://www.history.com/this-day-in-history/humphrey-announces-that-he-would-halt-the-bombing-of-north-vietnam.
Humphrey announces that he would halt the bombing of North Vietnam. [Internet]. 2013. The History Channel website. Available from: http://www.history.com/this-day-in-history/humphrey-announces-that-he-would-halt-the-bombing-of-north-vietnam [Accessed 23 May 2013].
“Humphrey announces that he would halt the bombing of North Vietnam.” 2013. The History Channel website. May 23 2013, 4:41 http://www.history.com/this-day-in-history/humphrey-announces-that-he-would-halt-the-bombing-of-north-vietnam.
“Humphrey announces that he would halt the bombing of North Vietnam,” The History Channel website, 2013, http://www.history.com/this-day-in-history/humphrey-announces-that-he-would-halt-the-bombing-of-north-vietnam [accessed May 23, 2013].
“Humphrey announces that he would halt the bombing of North Vietnam,” The History Channel website, http://www.history.com/this-day-in-history/humphrey-announces-that-he-would-halt-the-bombing-of-north-vietnam (accessed May 23, 2013).
Humphrey announces that he would halt the bombing of North Vietnam [Internet]. The History Channel website; 2013 [cited 2013 May 23] Available from: http://www.history.com/this-day-in-history/humphrey-announces-that-he-would-halt-the-bombing-of-north-vietnam.
Humphrey announces that he would halt the bombing of North Vietnam, http://www.history.com/this-day-in-history/humphrey-announces-that-he-would-halt-the-bombing-of-north-vietnam (last visited May 23, 2013).
Humphrey announces that he would halt the bombing of North Vietnam. The History Channel website. 2013. Available at: http://www.history.com/this-day-in-history/humphrey-announces-that-he-would-halt-the-bombing-of-north-vietnam. Accessed May 23, 2013.