United States1973–199718 issues
WH#V01N01 (1973-July)#V01N01 (1973-July)
- WH#V01N02 (1973-December)
#V01N02 (1973-December)
- WH#V01N03 (1974-March)
#V01N03 (1974-March)
- WH#V01N04 (1974-July)
#V01N04 (1974-July)
- WH#V02N01 (1974-November)
#V02N01 (1974-November)
- WH#V02N2/3 (1975-June)
#V02N2/3 (1975-June)
- WH#V02N04 (1975-December)
#V02N04 (1975-December)
- WH#N08 (1976-August)
#N08 (1976-August)
- WH#V03N01 (1976-December)
#V03N01 (1976-December)
- WH#V03N02 (1977-August)
#V03N02 (1977-August)
- WH#V03N3/4 (1978-October)
#V03N3/4 (1978-October)
- WH#V04N1/2 (1979-October)
#V04N1/2 (1979-October)
- WH#V04N3/4 (1982-March)
#V04N3/4 (1982-March)
- WH#V05N1/2 (1982-August)
#V05N1/2 (1982-August)
- WH#V05N3/4 (1983-October)
#V05N3/4 (1983-October)
- WH#V06N1/2 (1984-December)
#V06N1/2 (1984-December)
- WH#V06N3/4 (1987-October)
#V06N3/4 (1987-October)
- WH#NSpring (1997)
#NSpring (1997)