(2004). Thirty-first International Pyrotechnics Seminar: Fort Collins, Colorado, July 11-16, 2004 / hosted by IPSUSA Seminars, Inc. under the auspices of the International Pyrotechnics Society.

Thirty-first International Pyrotechnics Seminar: Fort Collins, Colorado, July 11-16, 2004 / Hosted by IPSUSA Seminars, Inc. Under the Auspices of the International Pyrotechnics Society. 2004.

Thirty-first International Pyrotechnics Seminar: Fort Collins, Colorado, July 11-16, 2004 / Hosted by IPSUSA Seminars, Inc. Under the Auspices of the International Pyrotechnics Society. 2004.