Soil data card handbook

समान संसाधन

• Astronomy data book /
  द्वारा: Robinson, J. Hedley
  प्रकाशित: (1979)
• Observational astronomy for amateurs
  द्वारा: Sidgwick, J. B. (John Benson), 1916-
  प्रकाशित: (1982)
• A complete manual of amateur astronomy tools and techniques for astronomical observations
  द्वारा: Sherrod, P. Clay
  प्रकाशित: (1981)
• Observing the weather the Australian co-operative observers' guide
  द्वारा: Australia., Bureau of Meteorology
  प्रकाशित: (1979)
• The southern sky : a practical guide to astronomy /
  द्वारा: Reidy, David
  प्रकाशित: (1987)