बृहत्संहिता: प्रथम भाग (आचार्य वराहमिहिर - विमला हिन्दी व्याख्या, पं. अच्युतानन्द झा)

'?
Let's look REALLY closely at line 21:
'साराश्रमाः'
Next is single quote? No, closing quote is on 'साराश्रमाः':
Look: after माः there is an apostrophe / single quote: ’
Then two dandas: ।।
Then two 1s? Wait, there are THREE 1-like glyphs:
Look: ।। ११-१६ ।। or ।। १ १ १ - १ ६ ।।?
Let's count:
Glyph 1: ।
Glyph 2: ।
Glyph 3: १
Glyph 4: १
Wait, between Glyph 2 and '-' there are TWO digits!
Wait, look at:
।। १ १ - १ ६ ।।
Wait, why did I think three?
Ah, because in my first quick glance I wondered. But looking closely:
। (danda 1)
। (danda 2)
१ (one)
१ (one)

• (hyphen)
  १ (one)
  ६ (six)
  । (danda 1)
  । (danda 2)
  Yes, it is: ।। ११-१६ ।।
  Wait, look at the space between ।। and ११:
  They are slightly spaced: "।। ११-१६ ।।"
  Wait, look:
  'साराश्रमाः' ।।११-१६।। or 'साराश्रमाः' ।। ११ - १६ ।।
  It's clearly verses 11 to 16